CURRICULUM VITAE
Robert Terrance Downs

Contact Information
Education
Professional Experience
Teaching Experience
Graduate Student Supervision
Honors and Awards
Professional Memberships
Abstracts from Meetings
Invited Talks
Journal Publications
Books
Funding
Press Release

Contact Information:

Education:

Professional Experience:

Teaching Experience:

Graduate Student Supervision:

Honors and Awards:

Professional Memberships:

Abstracts from Meetings:
  1. Downs, R.T., Boisen, M.B., Jr. and Gibbs, G.V. (1989) Mean-square displacements along TO bonds in framework aluminosilicates. EOS Transactions, AGU, Spring Meeting Supplement, 70 (15) 352
  2. Downs, R.T., Gibbs, G.V. and Boisen, M.B., Jr. (1990) A study of the mean-square displacement amplitudes of Si, Al and O atoms in framework structures: Evidence for rigid bonds, order, twinning and stacking faults. EOS Transactions, AGU, Spring Meeting Supplement, 71 (17) 526
  3. Downs, R.T., Gibbs, G.V., Bartelmehs, K.L. and Boisen, M.B., Jr. (1991) The variation of the SiO bond length with temperature. EOS Transactions, AGU, Spring Meeting Supplement,72 (17) 144
  4. Palmer, D.C. and Downs, R.T. (1991) High pressure behavior of cristobalite revealed by single-crystal X-ray diffraction. EOS Transactions, AGU, Fall Meeting Supplement, 72 (4) 478
  5. Palmer, D.C., Downs, R.T. and Hemley, R.J. (1991) High-pressure phase transitions in cristobalite. Condensed Matter and Materials Physics Birmingham
  6. Downs, R.T. and Gibbs, G.V. (1992) Aspects of the high temperature behavior of quartz. EOS Transactions, AGU, Spring Meeting Supplement, 73 (14) 142
  7. Palmer, D.C., Finger, L.W., Hemley, R.J. and Downs, R.T. (1992) The high pressure tetragonal-triclinic phase transition in cristobalite. EOS Transactions, AGU, Spring Meeting Supplement, 73 (14) 301
  8. Bartelmehs, K.L., Gibbs, G.V., Boisen, M.B., Jr. and Downs, R.T. (1993) Interactive computer software used in teaching and research in mineralogy at Virginia Tech. Geological Society of America Fall Meeting, Boston, A-347
  9. Downs, R.T. (1993) The significance of thermal ellipsoids in the feldspar structures. NATO Advanced Study Institute ``Feldspars and Their Reactions'', Edinburgh, Scotland
  10. Gibbs, G.V., Boisen, M.B., Jr. and Downs, R.T. (1993) Is the space group symmetry adopted by coesite, quartz and cristobalite governed by short ranged forces? EOS Transactions, AGU, Spring Meeting Supplement, 74 (16) 163
  11. Downs, R.T., Hazen, R.M. and Finger, L.W. (1994) The high-pressure crystal chemistry of low albite. EOS Transactions, AGU, Spring Meeting Supplement, 75 (16) 188
  12. Downs, R.T. and Ribbe, P.H. (1994) The structure of low albite at high pressures and temperatures: comparison with alkali-substituted feldspars. International Mineralogical Association, 16th General Meeting, Pisa Italy, Session OS-1
  13. Hazen, R.M., Downs, R.T., Finger, L.W., Conrad, P.G. and Gasparik, T. (1994) Crystal chemistry and high-pressure behavior of majorite-type garnets. EOS Transactions, AGU, Spring Meeting Supplement, 75 (16) 192
  14. Downs, R.T., Finger, L.W. and Hazen, R.M. (1994) Rigid body refinement of the structure of quartz as a function of temperature. Geological Society of America Annual Meeting Abstracts with Programs, 26 A-111
  15. Hazen, R.M., Downs, R.T., Finger, L.W., Gasparik, T. and Fursenko, B. (1994) Crystal chemistry of three new high-pressure silicates with octahedrally-coordinated silicon. Geological Society of America Annual Meeting Abstracts with Programs, 26 A-166
  16. Zha, C.S., Duffy, T.S., Downs, R.T., Mao, H.K. and Hemley, R.J. (1994) Single-crystal elasticity of forsterite to 16 GPa. EOS Transactions, AGU, Fall Meeting Supplement, 75 (44) 633
  17. Downs, R.T., Hazen, R.M. and Finger, L.W. (1995) Olivine compression mechanisms. EOS Transactions, AGU, Spring Meeting Supplement, 76 (17) 154
  18. Andalman, A., Hudasko, M. and Downs, R.T. (1995) An electron density study of the bonding of Na and Oco in low albite. EOS Transactions, AGU, Spring Meeting Supplement, 76 (17) 154
  19. Duffy, T.S., Zha, C.S., Downs, R.T., Mao, H.K. and Hemley, R.J. (1995) Constraints on upper mantle composition from new measurements of the elasticity of forsterite to transition zone pressures. EOS Transactions, AGU, Spring Meeting Supplement, 76 (17) 41
  20. Hazen, R.M., Finger, L.W., and Downs R.T. (1995) High-pressure alkali and alkaline earth framework silicates with 4- and 6-coordinated silicon. EOS Transactions, AGU, Fall Meeting Supplement, 76 (46) F531
  21. Zha, C.S., Mao, H.K., Hemley, R.J., Downs, R.T., and Duffy, T.S. (1995) Sound velocity and elasticity of b -Mg2SiO4 under high pressure by Brillouin scattering. EOS Transactions, AGU, Fall Meeting Supplement, 76 (46) F631
  22. Downs, R.T., and Bartelmehs, K.L. (1996) Computer visualization of temperature and pressure effects on crystal structures. EOS Transactions, AGU, Spring Meeting Supplement, 77 (17) S261
  23. Yang, H., Hazen, R.M., Downs, R.T., and Finger, L.W. (1996) Structural change associated with the incommensurate-normal phase transition in akermanite, Ca2MgSi2O7, at high pressure. EOS Transactions, AGU, Spring Meeting Supplement, 77 (17) S144
  24. Downs, R.T. and Finger, L.W. (1996) Modeling the thermal motion of freely rotating molecules. International Union of Crystallography XVII Congress and General Assembly, Seattle Washington, C-443. (pdf file of notes)
  25. Hazen, R.M. and Downs, R.T. (1996) Systematic crystal chemistry of high-pressure silicates: An interactive graphics demonstration. International Union of Crystallography XVII Congress and General Assembly, Seattle Washington, C-543.
  26. Yang, H., Finger, L.W., Hazen, R.M., Downs, R.T., and Prewitt, C.T. (1996) Compressibilities and high-pressure crystal structures of kyanite and sillimanite. EOS Transactions, AGU, Fall Meeting Supplement, 77 (46) F683
  27. Zha, C.S., Mao, H.K., Downs, R.T., and Hemley, R.J. (1996) Single-crystal elasticity of San Carlos olivine to 32.4 GPa. EOS Transactions, AGU, Fall Meeting Supplement, 77 (46) F682
  28. Inbar, I., Downs, R.T., Somayazulu, M., Teter, D., Hazen, R.M. (1996) High-pressure behavior of CO2. Abstracts of the March 1996 Meeting of the American Physical Society, O27.07
  29. Mazin, I.I, Fei, Y., Cohen, R.E., and Downs, R.T. (1997) New kind of polytypism: Hexagonal FeO. The American Physical Society March Meeting.
  30. Downs, R.T., Yang, H., Hazen, R.M., and Finger, L.W. (1997) The high-pressure crystal chemistry of the alkali feldspars: New data from reedmergnerite, NaBSi3O8. EOS Transactions, AGU, Spring Meeting Supplement, 78 (17) S314
  31. Cohen, R.E., Fei, Y., Mazin, I.I., Downs, R.T., and Isaak, D.G. (1997) Phase transitions in transition metal oxides and unusual polytypism in high pressure FeO. EOS Transactions, AGU, Fall Meeting Supplement, 78 (46) F743
  32. Downs, R.T., Teter, D.M., and Gibbs, G.V. (1997) A Pro-crystal electron density analysis of potassium-oxygen bonding in microcline and KTP as a function of pressure. EOS Transactions, AGU, Fall Meeting Supplement, 78 (46) F754
  33. Downs, R.T. (1998) Computer graphics simulation of compression mechanisms in crystals. IUCR-HP98, Argonne, Abstracts, 21
  34. Thompson, R.M., and Downs, R.T. (1999) Quantitative analysis of the closest-packing of anions in mineral structures as a function of pressure, temperature, and compositions. EOS Transactions, AGU, Fall Meeting Supplement, 80 (46) F1107.
  35. Downs, R.T., Gibbs, G.V., and Boisen M.B., Jr. (1999) Topological analysis of the P21/c to C2/c transition in pyroxenes as a function of temperature and pressure. EOS Transactions, AGU, Fall Meeting Supplement, 80 (46) F1140.
  36. Righter, K., and Downs, R.T. (2000) Magnesioferrite spinel as the host phase for iridium and other highly siderophile elements at the cretaceous-tertiary boundary. Meteoritical Society Meeting. Meteoritics & Planetary Science 35: A136-A137, Supplement S Sep 2000
  37. Downs, R.T., Gibbs, G.V., Giovanni, M.K., Boisen, M.B.Jr., and Rosso, K.M. (2001) A comparison of procrystal and first-principles crystal electron density distributions with application to understanding the phase changes in pyroxenes. In Eleventh Annual V.M. Goldschmidt Conference, Abstract#3902, LPI Contribution No. 1088, Lunar and Planetary Institute, Houston (CD-ROM). May 20-24, Hot Springs, VA.
  38. Thompson, R.M., Downs, R.T., and Lienert, C. (2001) Ideal Pyroxene Topologies. In Eleventh Annual V.M. Goldschmidt Conference, Abstract#3149, LPI Contribution No. 1088, Lunar and Planetary Institute, Houston (CD-ROM). May 20-24, Hot Springs, VA.
  39. Thompson, R.M., Downs, R.T., and Teter, D.M. (2001) Packing systematics of stishovite. EOS Transactions, AGU, Fall Meeting Supplement, 82 (47) F1156. (html file)
  40. Origlieri, M.J., Downs, R.T., and Harlow, G.E. (2001) Compression mechanism of the pyroxene kosmochlor. EOS Transactions, AGU, Fall Meeting Supplement, 82 (47) F1393.
  41. Pommier, C.J.S., Denton, M.B., and Downs, R.T. (2002) Polarized Raman spectroscopic study of the pressure-induced phase change from C2/c to P21/c in spodumene. Pittcon 1747P, New Orleans, LA, March 17-22, 2002. (pdf file)
  42. Lager, G.A., Marshall, W.G., and Downs, R.T. (2002) Keynote address: Re-examination of the hydrogarnet structure at high pressure using neutron powder methods: Comparison with single-crystal X-ray and theoretical results. 18th General Meeting of the International Mineralogical Association, 1-6 Sept, 2002, Edinburgh, Scotland. Programme With Abstracts, page 82.
  43. Origlieri, M.J., Thompson, R.M., Downs, R.T., and Gibbs, G.V. (2002) The relationship between compression anisotropy observed in the pyroxenes and oxide anion non-bonded repulsions. 18th General Meeting of the International Mineralogical Association, 1-6 Sept, 2002, Edinburgh, Scotland. Programme With Abstracts, page 71.
  44. Downs, R.T., and Hall-Wallace, M. (2002) A Database of Crystal Structures Published in the American Mineralogist and The Canadian Mineralogist and It's Use as a Resource in the Classroom. 18th General Meeting of the International Mineralogical Association, 1-6 Sept, 2002, Edinburgh, Scotland. Programme With Abstracts, page 128.
  45. Thompson, R.M., and Downs, R.T. (2002) Model Pyroxenes and Transition Pathways. 18th General Meeting of the International Mineralogical Association, 1-6 Sept, 2002, Edinburgh, Scotland. Programme With Abstracts, page 85.
  46. Ross, N.L., and Downs, R.T. (2003) High-pressure crystal chemistry: "Stuffed" framework structures at high-pressure. International School of Crystallography, High Pressure Crystallography, 4-15 June. Erice, Italy
  47. Pommier, C.J.S., Denton, M.B., and Downs, R.T. (2003) Raman spectroscopic study of spodumene through the pressure-induced phase change from C2/c to P21/c. Pittcon 1730-3, Orlando, FL, March 9-14, 2003.
  48. Uchida, H., and Downs, R.T. (2003) Single-crystal X-ray diffraction studies on spinels from the San Carlos Volcanic Field, Arizona In Geochimica et Cosmochimica Acta 67, A497 Supplement, Goldschmidt Conference, Sept 7-12, Kurashiki Japan. (pdf file)
  49. Hazen, R.M. and Downs, R.T. (2003) Chiral mineral surfaces and their chiral index. The Geological Society of America Annual Meeting, Seattle Washington. November 2-5, 2003. (pdf abstract)
  50. Gibbs, G.V., Whitten, A., Spackman, M., Simpfl, M., Carducci, M., and Downs, R.T. (2003) The silica polymorph coesite: An exploration of the electron density. The Geological Society of America Annual Meeting, Seattle Washington. November 2-5, 2003. (pdf abstract)
  51. McIntosh, B., Denton, M.B., Downs, R.T., Becker, D. (2003) Smart Raman instrument for Mars Science Laboratory. Mars Exploration Program Assessment Group, Sept 10-11, Jet Propulsion Laboratory, Pasadena, CA. (pdf file)
  52. Tait KT, Zhao, Y., and Downs, R.T. (2004) Investigations into the stability, morphology, and crystal structure of the coexistence of s-I and s-II methane-ethane and methane-propane clathrate hydrates: occurrence and geological implications. Lab Directed Research Dollars Review at LANSCE, Los Alamos, New Mexico. March 17, 2004.
  53. McIntosh, B. Denton, M.B., and Downs, R.T. (2004) Process Raman on Earth and research Raman on Mars - How are they related? Pittcon March 11, 2004. (Session: 24300-1000). Chicago, IL.
  54. Liermann H. P., Downs R. T., Yang H. (2004) Raman spectroscopy of order/disorder in pseudobrookite (MgTi2O5): Implication for the determination of the thermal history of planetary materials by remote sensing. 32nd IGC - Florence 2004.
  55. Hazen, R.M., Asthagiri, A., Teng, H., and Downs, R.T. (2004) Geochemical pathways to the origin of biochemical homochirality. Division of Geochemistry, American Chemical Society National Meeting, Philadelphia, PA, Aug 22-26. (html file)
  56. Downs, R.T., Liermann, H.P., and Yang, H. (2004) The analysis of Mg and Ti order/disorder in pseudobrookite by Raman spectroscopy: Implications for the geological exploration of Mars. Geological Association of Canada - Mineralogical Association of Canada Annual Meeting, St. Catherines 2004. SS01-06.
  57. Asthagiri, A., Downs, R.T., and Hazen, R.M. (2004) Density functional theory modeling of interactions between amino acids and chiral mineral surfaces. Fall GSA, Denver, 9 Nov. 2004. Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 338. (html file)
  58. Downs, R.T., Rossman, G., Drake, M.J., and Denton, M.B. (2004) A comprehensive Raman spectral library of minerals with search/match/predict capability. Fall Geological Society of America, Denver, 9 Nov, 2004.
  59. Downs, R.T., (2004) Scientific databases of the Mineralogical Society of America. GeoSciences Information Systems E-Resources Forum. Fall GSA, Denver, 7 Nov. 2004.
  60. Thompson, R.M., Downs, R.T. (2004) Volume of C2/c pyroxenes at mantle P, T, and x. EOS Transactions, AGU, 85(47), Fall Meeting Supplement, Abstract MR11A-0891.
  61. Yang H, Manoun B, Downs R T, Ganguly A, and Barsoum M W (2005) Crystal chemistry of layered carbide, Ti3(Ge0.57Si0.43)C2. Study of Matter at Extreme Conditions 2005 Conference, Miami Beach. Poster 18, page 109-110.
  62. K. Tait, M. Hartl, D. Williams, C. Pantea, L.L. Daemen, Y. Zhao , and Downs R T (2005) Diffraction and spectroscopy of thorite and huttonite (ThSiO4), Geophysical Research Abstracts, Vol. 7, 10957, European Geophysical Union, Vienna, Austria, April 24-29, 2005.
  63. Lavina, B., Polozov, A., and Downs, R.T. (2005) Mg, Al, Si, Ca - bearing magnetite from Korshunovskoe, East Siberia. XX Congress of the International Union of Crystallography, 23-31 August, Florence, Italy
  64. Tait, K.T., Zhao, Y., Downs, R.T., Stern, L.A., & Kirby, S. (2005) Investigations into the stability, morphology and the crystal structure of structure I and II methane-ethane clathrate hydrates. International Conference on Gas Hydrates, June 13-16, 2005.
  65. Rajenski, K., Mogk, D., and Downs, R.T. (2005) Teaching mineralogy with crystal structure databases and visualization software: A digital resource collection. Goldschmidt Conference, Moscow, Idaho, May 20-25.
  66. McCarthy, A., Domanik, K., and Downs, R.T. (2005) Determining structural chemical formulae using the American Mineralogist Crystal Structure Database. Goldschmidt Conference, Moscow, Idaho, May 20-25.
  67. LeBail A, Chateigner D, Chen X, Ciriotti M, Cranswick L M D, Downs R T, Lutterotti L, Yokochi A F T (2005) COD (Crystallography Open Database) and PCOD (Predicted). Acta Crystallographica A61, C481-C481 (pdf file)
  68. Yang, H., Lu, R., White, A., Downs, R.T., and Ma, Y. (2005) X-ray diffraction study of marokite (CaMn2O4) to 40 GPa. Abstracts of the Geological Society of America Annual Fall Meeting, Salt Lake City, 16-19 October 2005.
  69. Schmidt, G., Uchida H., Mooney, P., Lu, R., and Downs, R.T. (2005) Oriented crystal studies: Orienting the crystals Abstracts of the Geological Society of America Annual Fall Meeting, Salt Lake City, 16-19 October 2005.
  70. Dembowski, R.F., Mooney, P.R., Laetsch, T.A., Lu, R., and Downs, R.T. (2005) Orientation in Raman spectroscopy. Abstracts of the Geological Society of America Annual Fall Meeting, Salt Lake City, 16-19 October 2005. link
  71. Mooney, P.R., Dembowski, R.F., Laetsch, T.A., Zwick, J., Downs, R.T., and Lu, R. (2005) RRUFF Project: Developing an integrated database of Raman and infrared spectra, X-ray diffraction and chemistry data for minerals. Abstracts of the Geological Society of America Annual Fall Meeting, Salt Lake City, 16-19 October 2005. (pdf of poster)
  72. Lu, R., Downs, R.T., Denton, M.B., and Rossman, G.R. (2005) Integrated database of Raman spectra, X-ray diffraction and chemistry data for minerals. Abstracts of the Geological Society of America Annual Fall Meeting, Salt Lake City, 16-19 October 2005.
  73. Tait K T, Mao W L, Zhao Y, Trouw F R, Daemen L L, and Downs R T (2006) Gas hydrate experimental capabilities at the Los Alamos Neutron Scattering Center (LANSCE). LANSCE Basic Energy Sciences Review, Los Alamos, 21 March, 2006. link
  74. Downs R T (2006) The RRUFF Project: an integrated study of the chemistry, crystallography, Raman and infrared spectroscopy of minerals. Program and Abstracts of the 19th General Meeting of the International Mineralogical Association in Kobe, Japan. O03-13 link
  75. Origlieri M J, Downs R T, Carducci M D, Rosso K M, Gibbs G V (2006) Crystal structure and bonding in the new mineral AsSbO3. Program and Abstracts of the 19th General Meeting of the International Mineralogical Association in Kobe, Japan. O08-06 link PowerPoint Slides
  76. McCarthy A C, Downs R T, Lu R, Yang H (2006) Reexamination of yedlinite, Pb6(Cl,OH)6Cr3+(OH,O)8, using single-crystal X-ray diffraction and Raman spectroscopy, and redetermination of the chemical formula. Program and Abstracts of the 19th General Meeting of the International Mineralogical Association in Kobe, Japan. P08-12 link
  77. Ikuto D, Kawame N, Banno S, Hirajima T, Ito K, Rakovan J F, Downs R T, Tamada O (2006) First in situ X-ray identification of coesite and retrogressed quartz on a glass thin section of ultrahigh-pressure metamorphic rock and their crystal structure details. Program and Abstracts of the 19th General Meeting of the International Mineralogical Association in Kobe, Japan. P08-21 link
  78. Laetsch T A, Downs R T (2006) Software for identification and refinement of cell parameters from powder diffraction data of minerals using the RRUFF Project and American Mineralogist Crystal Structure Databases. Program and Abstracts of the 19th General Meeting of the International Mineralogical Association in Kobe, Japan. P08-25 link
  79. Tait K T, Trouw F R, Hehlen M P, Shapiro A H, Zhao Y, Downs R T (2006) Inelastic neutron study of THF+D2 clathrates. Program and Abstracts of the 19th General Meeting of the International Mineralogical Association in Kobe, Japan. P34-01 link
  80. Fong-Kee, G. (San Miguel High School), Thompson, R.M., and Downs, R.T. (2006) Mineralogy and Crystallography, Undergraduate Biology Research Program Summer Poster Session, University of Arizona.
  81. Thompson R M, Downs R T (2006) The crystal structure of diopside at pressure to 10 GPa. Eos Transactions, American Geophysical Union 87(52), Fall Meeting Supplement, Abstract MR21B-0018 link
  82. Ross N L, Gibbs G V, Downs R T, Prewitt C T, Rosso K M, Cox D F (2006) Electron density distributions for millerite, vaesite, heazlewoodite and Ni metal: A case for the importance of NiNi bond paths for electron transport. Eos Transactions, American Geophysical Union 87(52), Fall Meeting Supplement, Abstract MR43B-1086 link
  83. Gibbs G V, Cox D F, Rosso K M, Ross N L, Downs R T (2006) Bonded interactions in Fe and Cu sulfides; Do electroneutrality requirements hold in the classical sense for sulfides. Eos Transactions, American Geophysical Union 87(52), Fall Meeting Supplement, Abstract MR34A-08 PowerPoint Slides
  84. Dera P, Downs R T, Liermann H, Yang W (2006) Oscillation Laue Analysis (OLA) - A new crystal structure determination method for mineral physics. Eos Transactions, American Geophysical Union 87(52), Fall Meeting Supplement, Abstract MR24A-02 link
  85. Uchida H, Downs R T, Yang H (2006) Crystal-chemical investigation of kalsilite from San Venanzo, Italy, using single-crystal X-ray diffraction and Raman spectroscopy. Goldschmidt Conference Abstracts 2006, Geochimica et Cosmochimica Acta 70, A677-A680 link
  86. Downs R T, Thompson R M, Pommier C J S, McCarthy A C, Yang H (2007) Crystal chemistry of pyroxene compression. Study of Matter at Extreme Conditions Conference, Miami Beach, April 15-20, 2007
  87. Lu R, Konzett J, Frost D J, Yang H, Downs R T (2007) High-pressure Raman spectroscopic study of clinopyroxenes with 6-coordinated silicon. Study of Matter at Extreme Conditions Conference, Miami Beach, April 15-20, 2007
  88. Yang H, Konzett J, Downs R T (2007) Synthesis, crystal chemistry, and compressibility of a high-pressure phase (Ti0.50Zr0.26Cr0.10Mg0.14)O1.81 isostructural with cubic zirconia. Study of Matter at Extreme Conditions Conference, Miami Beach, April 15-20, 2007
  89. Thompson R M, McCarthy A C, Downs R T (2007) Crystal Chemical Controls on Equation of State. EOS Transactions AGU 88(52), Fall Meet. Suppl., Abstract DI44A-03 link
  90. Hazen R M, Papineau D, Bleeker W, Downs R T, Ferry J M, McCoy T J, Sverjensky D A, Yang H (2008) Mineralogical coevolution of the geo- and biospheres. Goldschmidt Conference Abstracts. Geochimica et Cosmochimica Acta 72, A360-A360 link
  91. Blake D F, Vaniman D, Anderson R, Bish D, Chipera S, Chemtob S, Crisp J, DesMais D J, Downs R T, Farmer J, Gailhanou M, Ming D, Morris D, Stolper E, Sarrazin P, Treiman A, Yen A (2009) The CheMin mineralogical instrument on the Mars Science Laboratory mission. 40th Lunar and Planetary Science conference, 1484 link
  92. Grazulis S, Butkus J, Downs R T, Quiros Olozabal M, LeBail A (2010) Software for maintaining and expanding the Crystallography Open Database. 26th European Crystallographic Meeting, ECM 26, Darmstadt, 2010. Acta Crystallographica A66, s313. link
  93. Rampe E B, Bish D L, Chipera S K, Morris R V, Achilles C N, Ming D W, Blake D F, Anderson R C, Bristow T F, Crisp J A, Des Marais D J, Downs R T, Farmer J D, Morookian J M, Morrison S M, Sarrazin P, Spanovich N, Stolper E M, Treiman A H, Vaniman D T, Yen A S, and the MSL Science Team (2013) Detecting nanophase weathering products with CheMin: Reference intensity ratios of allophane, aluminosilicate Gel, and ferrihydrite. 44th Lunar and Planetary Science conference, link
  94. Morrison S M, Downs R T, Blake D F, Bish D L, Ming D W, Morris R V, Yen A S, Chipera S J, Treiman A H, Vaniman D T, Gellert R, Achilles C N, Rampe E B, Bristow T F, Crisp J A, Sarrazin P C, Farmer J D, Des Marais D J, Stolper E M, Morookian J M, Wilson M A, Spanovich N, Anderson R C, and the MSL Science Team (2013) Crystal-chemical analysis of soil at Rocknest, Gale Crater 44th Lunar and Planetary Science conference, Abstract #1831 link
  95. Morris R V, Ming D W, Blake D F, Vaniman D T, Bish D L, Chipera S J, Downs R T, Gellert R, Treiman A H, Yen A S, Achilles C N, Anderson R C, Bristow T F, Crisp J A, Des Marais D J, Farmer J D, Grotzinger J P, Leshin L A, McAdam A C, Morookian J M, Morrison S M, Rampe E B, Sarrazin P C, Spanovich N, Stopler E M, and the MSL Science Team (2013) The amorphous component in Martian basaltic soil in global perspective from MSL and MER missions 44th Lunar and Planetary Science conference, Abstract #1653 link
  96. Vaniman D T, Blake D F, Yen A S, Ming D W, Morris R V, Achilles C N, Bish D L, Chipera S J, Morrison S M, Downs R T, Rampe E B, Morookian J M, Sarrazin P C, Treiman A H, Anderson R C, Bristow T F, Crisp J A, Des Marais D J, Farmer J D, Spanovich N, Stolper E M, and Wilson M A (2013) Data from the Mars Science Laboratory CheMin XRD/XRF instrument, European Geophysical Union Conference, EGU2013-6272
  97. Morrison S M, Downs R T, Blake D F, Bish D L, Ming D W, Morris R V, Yen A S, Chipera S J, Treiman A H, Vaniman D T, Gellert R, Achilles C N, Rampe E B, Bristow T F, Crisp J A, Sarrazin P C, Morookian J M and the MSL Science Team (2013) Crystal-Chemical Analyses of Soil and Drilled Rock in Gale Crater, Mars, Mineralogical Magazine (Goldschmidt), 77(5), 1794
  98. Morrison S M and the MSL Science Team (2013) Crystal-Chemistry of Mars Minerals at Rocknest, John Klein and Cumberland, Geological Society of America Annual Meeting, 228708
  99. Rampe E B, Morris R V, Ming D W, Archer P D, Bish D L, Chipera S J, Vaniman D T, Blake D F, Bristow T F, Sutter B, Farmer J D, Downs R T, Leveilles R, Achilles C N, Crisp J A, Des Marais D J, Morookian J M, Morrison S M, Sarrazin P C, Spanovich N, Treiman A H, Yen A S, and the MSL Science Team (2014) Characterizing the phyllosilicate component of the Sheepbed mudstone in Gale Crater, Mars using laboratory XRD and EGA, 45th Lunar and Planetary Science conference, Abstract #1890
  100. R V, Ming D W, Gellert R, Vaniman D T, Bish D L, Blake D F, Chipera S J, Downs R T, Treiman A H, Yen A S, Achilles C N, Archer P D, Bristow T F, Crisp J A, Des Marais D J, Farmer J D, Grotzinger J P, Mahaffy P R, McAdam A C, Morookian J M, Morrison S M, Rampe E B, and the MSL Science Team (2014) Chemical composition of crystalline, smectite, and amorphous components for Rocknest soil and John Klein and Cumberland mudstone drill fines using APXS, CheMin, and SAM datasets from Gale crater, Mars, 45th Lunar and Planetary Science conference, Abstract #1319
  101. Lafuente B, Bishop J L, Fenton L K, King S J, Blake D F, Sarrazin P C, Downs R T, Horgan B H, Garcia G C (2014) Mineralogical characterization by XRD of gypsum dunes at White Sands National Monument and application to gypsum detection on Mars, 45th Lunar and Planetary Science conference, Abstract #2578
  102. Lafuente B, Downs R T, Blake D, Stone N, Pires A (2014) The planetary materials database. 21st General Meeting of the International Mineralogical Association, 1-5 September, 2014, Gauteng South Africa, 383-383 link
  103. Farmer J D, Blake D, Klug S L, Boonstra D, Ming D W, Lavery D, Lafuente B, Manfredi L, Swann J, Downs R T (2014) Using earth/mars comparisons to assess habitability in the field: Educator symposium and field trip for K-12 educators 2014 GSA Annual Meeting in Vancouver, British Columbia (19-22 october 2014) Paper 258-7 link
  104. Morrison S M, Downs R T, Blake D F, Bish D L, Vaniman D T, Ming D W, Morris R V, Morookian J M, Rampe E B, Bristow T F, Chipera S J, Treiman A H, Gellert R, Achilles C N, Crisp J A, Sarrazin P C, Farmer J D, Des Marais D J, Stolper E M, Yen A S, Wilson M A, Spanovich N, Anderson R C and the MSL Science Team (2014) Crystal-chemical analyses of Martian minerals in Gale crater, 21st General Meeting of the International Mineralogical Association, Session PC1, 384
  105. Morrison S M, Downs R T, Blake D F, Bish D L, Morris R V, Vaniman D T, Rampe E B, Achilles C N, Ming D W, Chipera S J, Treiman A H, Gellert R, Bristow T F, Crisp J A, Morookian J M, Sarrazin P C, Farmer J D, Yen A S, Des Marais D J, Grotzinger J P, Stolper E M, Wilson M A, Spanovich N, Anderson R C, and the MSL Science Team (2015) Crystal-chemical analysis of Martian minerals in Gale crater, 46th Lunar and Planetary Science conference, Abstract #2506
  106. Morris R V, Ming D W, Gellert R, Vaniman D T, Bish D L, Blake D F, Chipera S J, Morrison S M, Downs R T, Rampe E B, Treiman A H, Yen A S, Achilles C N, Archer P D, Bristow T F, Cavanagh P, Fendrich K, Crisp J A, Des Marais D J, Farmer J D, Grotzinger J P, Mahaffy P R, McAdam A C, Morookian J M, and the MSL Science Team (2015) Update on the chemical composition of crystalline, smectite, and amorphous components for Rocknest soil and John Klein and Cumberland mudstone drill fines at Gale crater, Mars, 46th Lunar and Planetary Science conference, Abstract #2622
  107. Rampe E B, Morris R V, Bish D L, Chipera S J, Ming D W, Blake D F, Vaniman D T, Bristow T F, Cavanagh P, Farmer J D, Morrison S M, Treiman A H, Achilles C N, Crisp J A, Des Marais D J, Downs R T, Fendrich K, Morookian J M, Sarrazin P, Spanovich N, Yen A S, and the MSL Science Team (2015) Potential cement phases in sedimentary rocks drilled by curiosity at Gale crater, Mars, 46th Lunar and Planetary Science conference, Abstract #2038
  108. Cavanagh P D, Bish D L, Blake D F, Vaniman D T, Morris R V, Ming D W, Rampe E B, Achilles C N, Chipera S J, Treiman A H, Downs R T, Morrison S M, Fendrich K V, Yen A S, Grotzinger J, Crisp J A, Bristow T F, Sarrazin P C, Farmer J D, Des Marais D J, Stolper E M, Morookian J M, Wilson M A, Spanovich N, Anderson R C, and the MSL Science Team (2015) Confidence Hills mineralogy and CheMin results from base of Mt. Sharp, Pahrump Hills, Gale crater, Mars, 46th Lunar and Planetary Science conference, Abstract #2735
  109. Treiman A H, Bish D, Ming D W, Grotzinger J, Vaniman D T, Baker M B, Farmer J, Chipera S, Downs R T, Morris R V, Rampe E, Blake D F, Berger J, Cavanagh P D, Gellert R, Glazner A F, Schmidt M, Yen A S, Filiberto J and the rest of the APXS and CheMin teams (2015) Mineralogy and genesis of the Windjana sandstone, Kimberley area, Gale crater, Mars, 46th Lunar and Planetary Science conference, Abstract #2620
  110. Fendrich K V, Rampe E B, Vaniman D T, Bish D L, Blake D F, Treiman A H, Ming D W, Morris R V, Bristow T F, Cavanagh P D, Downs R T, Morrison S M, Chipera S J, Achilles C N, Crisp J A, Farmer J D, Des Marais D J, Morookian J M, Sarrazin P, Grotzinger J P, Spanovich N, Yen A S, Anderson R C, Stolper E M, Gellert R, and the MSL Team (2015) Curiosity Rover's CheMin Instrument Investigates Mineralogy of Gale Crater and Implications for Diagenesis, European Geophysical Union Conference, EGU2015-7730
  111. Achilles C N, Vaniman D T, Blake D F, Bristow T F, Rampe E B, Ming D W, Chipera R V, Morris R V, Morrison S M, Downs R T, Fendrich K V, Ehlmann B L, Yen A S, Sarrazin P C, Treiman A H, Craig P I, Lapotre M G A, Edgett K S, Gellert R, Crisp J A, Morookian J M, Grotzinger J P, De Marais D J, Farmer J D (2016) Mineralogy of eolian sands at Gale Crater. Lunar and Planetary Science Conference 47, Abstract #2532 link
  112. Rampe E B, Ming D W, Morris R V, Blake D F, Bristow T F, Chipera S J, Vaniman D T, Yen, A S, Grotzinger J P, Downs R T, Morrison S M, Peretyazhko T, Achilles C N, Bish D L, Cavanagh P D, Craig P D, Crisp J A, Fairen A G, Des Marais D J, Farmer J D, Fendrich K V, Morookian J M, Treiman A H (2016) Diagenesis in the Murray Formation, Gale Crater, Mars. Lunar and Planetary Science Conference 47, Abstract #2543 link
  113. Morris R V, Vanim an D T, Blake D F, Gellert R, Chipera S J, Rampe E B, Ming D W, Morrison S M, Downs R T, Treiman A H, Yen A S, Achilles C N, Bristow T F, Crisp J A, Des Marais D J, Farmer J D, Fendrich K V, Frydenvang J, Graff T J, Grotzinger J P, Morookian J M, Schwenzer S P (2016) High-temperature, perhaps silicic, volcanism on Mars evidenced by tridymite detection in high SiO2 sedimentary rock at Gale Crater, Mars. Lunar and Planetary Science Conference 47, Abstract #2581 link

Invited Talks:

Journal Publications:
  1. Gibbs, G.V., Boisen, M.B., Jr., Downs, R.T. and Lasaga, A.C. (1988) Mathematical Modeling of the structures and bulk moduli of TX2 quartz and cristobalite structure types, T = C, Si, Ge and X = O, S. Materials Research Society Symposium Proceedings, 121, 155-165. (pdf file)
  2. Boisen, M.B., Jr., Gibbs, G.V., Downs, R.T. and D'Arco, P. (1990) The dependence of the SiO bond length on structural parameters in coesite, the silica polymorphs and the clathrasils. American Mineralogist, 75, 748-754. (pdf file)
  3. Downs, R.T., Gibbs, G.V. and Boisen, M.B., Jr. (1990) A study of the mean-square displacement amplitudes of Si, Al and O atoms in framework structures: Evidence for rigid bonds, order, twinning and stacking faults. American Mineralogist, 75, 1253-1267. (pdf file)
  4. Gunter, M.E. and Downs, R.T. (1991) Drill: A computer program to aid in building ball and spoke crystal models. American Mineralogist, 76, 293-294. (pdf file)
  5. Bartelmehs, K.L., Bloss, F.D., Downs, R.T. and Birch, J.B. (1992) Excalibr II. Zeitschrift für Kristallographie, 199, 185-196. (pdf file)
  6. Downs, R.T., Gibbs, G.V., Bartelmehs, K.L. and Boisen, M.B., Jr. (1992) Variations of bond lengths and volumes of silicate tetrahedra with temperature. American Mineralogist, 77, 751-757. (pdf file)
  7. Palmer, D.C., Finger, L.W., Hemley, R.J. and Downs, R.T. (1992) The high pressure behavior of cristobalite. International Union of Crystallography, High-Pressure Group Meeting, May 30-31. (pdf file)
  8. Sterner, S.M., Chou, I-M., Downs, R.T. and Pitzer, K.S. (1992) Phase relations in the system NaCl-KCl-H20: V. Thermodynamic-PTX analysis of solid-liquid equilibria at high temperatures and pressures. Geochimica et Cosmochimica Acta, 56, 2295-2309. (pdf file)
  9. Downs, R.T., Bartelmehs, K.L., Gibbs, G.V. and Boisen, M.B., Jr. (1993) Interactive software for calculating and displaying X-ray or neutron powder diffractometer patterns of crystalline materials. American Mineralogist, 78, 1104-1107. (pdf file)
  10. Hazen, R.M., Downs, R.T., Finger, L.W. and Ko, J. (1993) Crystal chemistry of ferromagnesian silicate spinels: Evidence of Mg-Si disorder. American Mineralogist, 78, 1320-1323. (pdf file)
  11. Downs, R.T., Hazen, R.M. and Finger, L.W. (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al/Si order-disorder. American Mineralogist, 79, 1042-1052. (pdf file)
  12. Downs, R.T. and Palmer, D.C. (1994) The pressure behavior of a cristobalite. American Mineralogist, 79, 9-14. (pdf file)
  13. Finger, L.W., Hazen, R:M., Downs, R.T., Meng, R.L. and Chu, C.W. (1994) Crystal chemistry of HgBa2CaCu2O6+dand HgBa2Ca2Cu3O8+d: Single-crystal X-ray diffraction results. Physica C, 226, 216-221. (pdf file)
  14. Hazen, R.M., Downs, R.T., Conrad, P.G. Finger, L.W., and Gasparik, T. (1994) Comparative compressibilities of majorite-type garnets. Physics and Chemistry of Minerals, 21, 344-349. (pdf file)
  15. Hazen, R.M., Downs, R.T., Finger, L.W., Conrad, P.G. and Gasparik, T. (1994) Crystal chemistry of Ca-bearing majorite. American Mineralogist, 79, 581-584. (pdf file)
  16. Nicoll, J.S., Gibbs, G.V., Boisen, M.B., Jr., Downs, R.T. and Bartelmehs, K.L. (1994) Bond length and radii variations in fluoride and oxide molecules and crystals. Physics and Chemistry of Minerals, 20, 617-624. (pdf file)
  17. Bartelmehs, K.L., Downs, R.T., Gibbs, G.V., Boisen, M.B., Jr., Birch, J.B. (1995) Tetrahedral rigid-body motion in silicates. American Mineralogist, 80, 680-690. (pdf file)
  18. Downs, R.T., Hazen, R:M., Finger, L.W. and Gasparik, T. (1995) Crystal chemistry of lead aluminosilicate hollandite: A new high-pressure synthetic phase with octahedral silicon. American Mineralogist, 80, 937-940. (pdf file)
  19. Duffy, T.S., Zha, C-S., Downs, R.T., Mao, H-K., and Hemley, R.J. (1995) Elasticity of forsterite to 16 GPa and the composition of the upper mantle. Nature, 378, 170-173. (pdf file)
  20. Downs, R.T., Zha, C.-S., Duffy, T.S. and Finger, L.W. (1996) The equation of state of forsterite to 17.2 GPa and effects of pressure media. American Mineralogist, 81, 51-55. (pdf file)
  21. Hazen, R.M., Downs, R.T. and Finger, L.W. (1996) High-pressure crystal chemistry of LiScSiO4, an olivine with nearly isotropic compression. American Mineralogist, 81, 327-334. (pdf file)
  22. Hazen, R.M., Downs, R.T., and Finger, L.W. (1996) High-pressure framework silicates. Science, 272, 1769-1771. (pdf file)
  23. Zha, C-S., Duffy, T.S., Downs, R.T., Mao, H-K., and Hemley, R.J. (1996) Sound velocity and elasticity of single-crystal forsterite to 16 GPa. Journal of Geophysical Research, 101, 17535-17545. (pdf file)
  24. Struzhkin, V.V., Timofeev, Y.A., Downs, R.T., Hemley, R.J., and Mao, H.K. (1996) Tc(P) from magnetic susceptibility measurements in high temperature superconductors: YBa2Cu3O7-x and HgBa2Ca2Cu308+x. High Pressure Science and Technology, Proceedings of the Joint XV International Association for the Advancement of High Pressure Science and Technology & XXXIII European High Pressure Research Group, Poland, September 11-15, 1995, Editor: W.A. Trzeciakowski, 1996, World Scientific Publishing Co., Singapore, 682-685. (pdf file)
  25. Downs, R.T., Andalman, A., and Hudasko, M. (1996) The coordination numbers of Na and K atoms in low albite and microcline as determined from a procrystal electron-density distribution. American Mineralogist, 81, 1344-1349. (pdf file)
  26. Yang, H., Downs, R.T., Finger, L.W., Hazen, R.M., and Prewitt, C.T. (1997) Compressibility and crystal structure of kyanite, Al2SiO5, at high pressure. American Mineralogist, 82, 467-474. ( pdf file)
  27. Zha, C-S., Duffy, T.S., Mao, H.K., Downs, R.T., Hemley, R.J., and Weidner, D.J. (1997) Single-crystal elasticity of b -Mg2SiO4 to the pressure of the 410 km seismic discontinuity in the Earth's ,mantle. Earth and Planetary Science Letters, 147, E9-E15. (pdf file)
  28. Yang, H., Hazen, R.M., Downs, R.T., and Finger, L.W., (1997) Structural change associated with the incommensurate-normal phase transition in akermanite, Ca2MgSi2O7, at high pressure. Physics and Chemistry of Minerals, 24, 510-519. (pdf file)
  29. Badro, J., Teter, D.M., Downs, R.T., Gillet, P., Hemley, R.J., and Barrat, J-L. (1997) Theoretical study of a five-coordinated silica polymorph. Physical Review B, 56, 5797-5806. (pdf file)
  30. Zha, C-S., Duffy, T.S., Downs, R.T., Mao, H.K., Hemley, R.J., and Weidner, D.J. (1998) Single-crystal elasticity of the a and b polymorphs of Mg2SiO4 at high pressure. In Properties of Earth and Planetary Materials at High Pressure and Temperature: Geophysical Monograph 101, 9-16. M. H. Manghnani and T. Yagi, editors. American Geophysical Union, Washington, D.C. (pdf file)
  31. Mazin, I., Fei, Y., Downs, R.T., and Cohen, R. (1998) Possible polytypism in FeO at high pressure. American Mineralogist, 83, 451-457. ( pdf file)
  32. Yang, H., Hazen, R.M., Finger, L.W., Prewitt, C.T., and Downs, R.T., (1998) Compressibility and crystal structure of sillimanite, Al2SiO5, at high pressure. Physics and Chemistry of Minerals, 25, 39-47. ( pdf file)
  33. Downs, R.T., and Somayazulu, M. (1998) Carbon dioxide at 1.0 GPa. Acta Crystallographica C54, 897-898. (pdf file)
  34. Zha, C-S., Duffy, T.S., Downs, R.T., Mao, H.K., and Hemley, R.J. (1998) Brillouin scattering and X-ray diffraction of San Carlos olivine: Direct pressure determination to 32 GPa. Earth and Planetary Science Letters 159, 25-33. (pdf file)
  35. Gibbs, G.V., Hill, F.C., Boisen, M.B., Jr., and Downs, R.T. (1998) Power law relationships between bond length, bond strength and electron density distributions. Physics and Chemistry of Minerals 25, 585-590. (pdf file)
  36. Gibbs, G.V., Boisen, M.B., Jr., Hill, F.C., Tamada, O., and Downs, R.T. (1998) SiO and GeO bonded interactions as inferred from the bond critical point properties of electron density distributions. Physics and Chemistry of Minerals, 25,574-584. (pdf file)
  37. Jacobsen, S.D., Smyth, J.R., Swope, R.J., and Downs, R.T. (1998) Rigid-body character of the SO4 groups in celestite, anglesite, and barite. Canadian Mineralogist, 36, 1045-1055. (pdf abstract)
  38. Cohen, R. E., Fei, Y., Downs, R.T., Mazin, I.I., and Isaak, D.G. (1998) Magnetic collapse and the behavior of transition metal oxides: FeO at high pressures, in High-Pressure Materials Research, R. M. Wentzcovitch et al., eds., pp. 27-37, Symposium Proceedings Vol. 499, Materials Research Society, Warrendale, Pennsylvania. (pdf file)
  39. Prewitt, C.T. and Downs, R.T. (1998) High-Pressure Crystal Chemistry. Reviews in Mineralogy, 37, Ultrahigh-Pressure Mineralogy: Physics and Chemistry of the Earth's Deep Interior, Russell J. Hemley, Editor. Mineralogical Society of America, Washington DC. (pdf file)
  40. Gibbs, G.V., Hill, F.C., Boisen, M.B., Jr., and Downs, R.T. (1999) Molecules as a basis for modeling the force field of silica. In Structure and Imperfections in Amorphous and Crystalline SiO2. Rod Devine, editor, John Wiley and Sons, Chapter 6, 151-163. (pdf file)
  41. Downs, R.T., Yang, H., Hazen, R.M., Finger, L.W., and Prewitt, C.T. (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite. American Mineralogist, 84, 333-340. (pdf file)
  42. Sprague, A.L., Roush, T.L., Downs, R.T., Righter, K. (2000) Response to comment on "Comparison of laboratory emission spectra with Mercury telescopic data" by Melissa Lane. Icarus 143, 409-411. (pdf file)
  43. Holl, C.M., Smyth, J.R., Laustsen, H.M.S., Jacobsen, S.D., and Downs, R.T. (2000) Compression of witherite to 8 GPa and the crystal structure of BaCO3 II. Physics and Chemistry of Minerals, 27, 467-473. (pdf file)
  44. Angel, R.J., Downs, R.T., and Finger, L.W. (2000) High-temperature - high-pressure diffractometry. Reviews in Mineralogy and Geochemistry, 41, High-Temperature and High-Pressure Crystal Chemistry, Robert M. Hazen and Robert T. Downs, Editors. Mineralogical Society of America, Washington DC. (pdf file)
  45. Downs, R.T. (2000) Analysis of harmonic displacement factors. Reviews in Mineralogy and Geochemistry, 41, High-Temperature and High-Pressure Crystal Chemistry, Robert M. Hazen and Robert T. Downs, Editors. Mineralogical Society of America, Washington DC. (pdf file)
  46. Downs, R.T., and Heese, P.J. (2000) Animation of crystal structure variations with pressure, temperature and composition. Reviews in Mineralogy and Geochemistry, 41, High-Temperature and High-Pressure Crystal Chemistry, Robert M. Hazen and Robert T. Downs, Editors. Mineralogical Society of America, Washington DC. (pdf file)
  47. Hazen, R.M., Downs, R.T., and Prewitt, C.T. (2000) Principles of comparative crystal chemistry. Reviews in Mineralogy and Geochemistry, 41, High-Temperature and High-Pressure Crystal Chemistry, Robert M. Hazen and Robert T. Downs, Editors. Mineralogical Society of America, Washington DC. (pdf file)
  48. Thompson, R.M., and Downs, R.T. (2001) Quantifying distortion from ideal closest-packing in a crystal structure with analysis and application. Acta Crystallographica B57, 119-127. (pdf file)
  49. Righter, K., and Downs, R.T. (2001) The crystal structures of synthetic Re- and PGE-bearing magnesioferrite spinels: Implications for impacts, accretion and the mantle. Geophysical Research Letters, 28, 619-622. (pdf file)
  50. Thompson, R.M., and Downs, R.T. (2001) The systematic generation of all nonequivalent closest-packed stacking sequences of length N using group theory. Acta Crystallographica B57, 766-771. (pdf file)
  51. Lager, G.A., Downs, R.T., Origlieri, M., and Garoutte, R. (2002) High-pressure single-crystal X-ray diffraction study of hydrogarnet: Evidence for a phase transition from Ia3d to I43d symmetry at 5 GPa. American Mineralogist 87, 642-647. (pdf file)
  52. Downs, R.T., Gibbs, G.V., Boisen, M.B.Jr., and Rosso, K.M. (2002) A comparison of procrystal and ab initio representations of the electron-density distributions of minerals. Physics and Chemistry of Minerals 29, 369-385. (pdf file)
  53. Downs, R.T. and Hall-Wallace, M. (2003) The American Mineralogist Crystal Structure Database. American Mineralogist 88, 247-250. (pdf file)
  54. Downs, R.T. (2003) Topology of the pyroxenes as a function of temperature, pressure, and composition as determined from the procrystal electron density. American Mineralogist 88, 556-566. (pdf file)
  55. Thompson, R.M. and Downs, R.T. (2003) Model pyroxenes I: Ideal pyroxene topologies. American Mineralogist 88, 653-666. (pdf file)
  56. Denton, M.B., Sperline, R.P., Giles, J.H., Gilmore, D.A., Pommier, C.J.S., and Downs, R.T. (2003) Advances in the application of array detectors for improved chemical analysis, Part I. Comparison of qualitative analyses using large, computer-based Raman spectral libraries. Australian Journal of Chemistry 56, 117-131. (pdf file)
  57. Downs, R.T. (2003) The Berry Medal for 2002 to Robert T. Downs. The Canadian Mineralogist 41, 243-245. (pdf file)
  58. Gibbs, G.V., Cox, D.F., Boisen, M.B., Jr., Downs, R.T., and Ross, N.L. (2003) The electron localization function: a tool for locating favorable proton docking sites in the silica polymorphs. Physics and Chemistry of Minerals, 30, 305-316. (pdf file)
  59. Origlieri, M.J., Downs, R.T., Thompson, R.M., Pommier, C.J.S., Denton, M.B., and Harlow, G.E. (2003) High-pressure crystal structure of kosmochlor, NaCrSi2O6, and systematics of anisotropic compression in pyroxenes. American Mineralogist, 88, 1025-1032. (pdf file) (erratum)
  60. Wang, Z., Downs, R.T., Pischedda, V., Shetty, R., Saxena, S.K., Zha, C.S., Zhao, Y.S., Schiferl, D., and Waskowska, A. (2003) High-pressure X-ray diffraction and Raman spectroscopic studies of the tetragonal spinel CoFe2O4. Physical Review B, 68, 094101. (pdf file)
  61. Wang, Z., Zhao, Y., Schiferl, D., Zha, C.S., Downs, R.T., Sekine, T. (2003) Critical pressure for weakening of size-induced stiffness in spinel-structure Si3N4 nanocrystals. Applied Physics Letters, 83, 3174-3176. (pdf file)
  62. Pommier, C.J.S., Denton, M.B., and Downs, R.T. (2003) Raman spectroscopic study of spodumene (LiAlSi2O6) through the pressure-induced phase change from C2/c to P21/c. Journal of Raman Spectroscopy, 34, 769-775. (pdf file)
  63. Gibbs, G.V., Whitten, A.E., Spackman, M.A., Stimpfl, M., Downs, R.T., and Carducci, M.D. (2003) An exploration of theoretical and experimental electron density distributions and SiO bonded interactions for the silica polymorph coesite. Journal of Physical Chemistry B, 107, 12996-13006 (pdf file)
  64. Wang, Z., Zhao, Y., Schiferl, D., Qian, J., Downs, R.T., Mao, H-K., and Sekine, T. (2003) Threshold pressure for disappearance of size-induced effect in spinel-structure Ge3N4 nanocrystals. Journal of Physical Chemistry B, 107, 14151-14153 (pdf file)
  65. Ross, N.L. and Downs, R.T. (2003) "Stuffed" framework structures at high pressure. In NATO ASI Series: High-Pressure Crystallography, P.F. McMillan and A. Katrusiak, Eds., Kluwer Academic Press.
  66. Thompson, R.M., and Downs, R.T. (2004) Model pyroxenes II: Structural variation as a function of tetrahedral rotation. American Mineralogist 89, 614-628. (pdf file)
  67. Clark, C.M., and Downs, R.T. (2004) Using the American Mineralogist Crystal Structure Database in the classroom. Invited paper, Journal of Geoscience Education 51, 76-80. (pdf file)
  68. Downs, R.T., and Hazen, R.M. (2004) Chiral indices of crystalline surfaces as a measure of enantioselective potential. Invited paper, Journal of Molecular Catalysis A: Chemical 216, 273-285. (pdf file)
  69. Wang, Z, Zhao, Y., Schiferl, D., Zha, C.S., and Downs, R.T. (2004) Pressure induced increase of particle size and resulting weakening of elastic stiffness of CeO2 nanocrystals. Applied Physics Letters 85, 124-126. (pdf file)
  70. Wang, Z, Tait, K., Zhao, Y., Schiferl, D., Zha, C.S., Uchida, H., and Downs, R.T. (2004) Size-induced reduction of transition pressure and enhancement of bulk modulus of AlN nanocrystals. Journal of Physical Chemistry B 108, 11506-11508. (pdf file)
  71. Wang, Z, Zhao, Y., Tait, K., Liao, X., Schiferl, D., Zha, C.S., Downs, R.T., Qian J., Zhu, Y., and Shen, T. (2004) A quenchable superhard carbon phase synthesized by cold compression of carbon nanotubes. Proceedings of the National Academy of Sciences of the United States of America 101, 13699-13702 (pdf file)
  72. Le Bail, A., Chateigner, D., Chen, X., Ciriotti, M., Cranswick, L.M.D., Downs, R.T., Lutterotti, L., Rajan, H., and Yokochi, A.F.T. (2004) Does open data better serve the crystallographic community? International Union of Crystallography Newsletter 12, 27.
  73. Lager, G.A., Marshall, W.G., Liu, Z., and Downs, R.T. (2005) Re-examination of the hydrogarnet structure at high pressure using neutron powder diffraction and infrared spectroscopy. American Mineralogist 90, 639-644. (pdf file)
  74. Pommier, C.J.S., Downs, R.T., Stimpfl, M., Redhammer, G.J., and Denton, M.B. (2005) Raman and X-ray investigations of LiFeSi2O6 pyroxene under pressure. Journal of Raman Spectroscopy 36, 864-871. (pdf file)
  75. Gunter, M.E., Downs, R.T., Bartelmehs, K.L., Evans, S.H., Pommier, C.J.S., Grow, J.S., Sanchez, M.S., and Bloss, F.D. (2005) Optic properties of centimeter-sized crystals determined in air with the spindle stage using EXCALIBRW. American Mineralogist 90, 1648-1654. (pdf file)
  76. Gibbs, G.V., Cox, D.F., Ross, N.L., Crawford T.D., Downs, R.T., and Burt, J.B. (2005) Comparison of the electron localization function and deformation electron density maps for selected earth materials. Journal of Physical Chemistry A 109, 10022-10027. (pdf file)
  77. Uchida, H., Lavina, B., Downs, R.T., and Chesley, J. (2005) Single-crystal X-ray diffraction of spinels from the San Carlos Volcanic Field, Arizona: Spinel as a geothermometer American Mineralogist 90, 1900-1908 (pdf file)
  78. Thompson, R.M., Downs, R.T., and Redhammer, G.J. (2005) Model pyroxenes III: Volume of C2/c pyroxenes at mantle P, T, and x. American Mineralogist 90, 1840-1851 (pdf file)
  79. Wang Z, Daemen L.L., Zhao, Y., Zha, C.S., Downs, R.T., Wang, X., Wang, Z.L., Hemley, R.J. (2005) Morphology-tuned wurtzite-type ZnS nanobelts. Nature Materials 4, 922-927. (pdf file)
  80. Gibbs G.V., Downs R.T., Prewitt C.T., Rosso K.M., Ross N.L., and Cox D.F. (2005) Electron density distributions calculated for the nickel sulfides millerite, vaesite and heazlewoodite and nickel metal: A case for the importance of Ni-Ni bond paths for electron transport. Journal of Physical Chemistry B 109, 21788-21795. (pdf file)
  81. Downs R.T. (2005) XtalDraw for Windows. Commission on Powder Diffraction, International Union of Crystallography Newsletter 30, 32-33. (pdf file)
  82. Rajan, H., Uchida, H., Bryan, D.L., Swaminathan, R., Downs, R.T., Hall-Wallace, M. (2006) Building the American Mineralogist Crystal Structure Database: A recipe for construction of a small Internet database. In Sinha, A.K. ed., Geoinformatics: Data to Knowledge: Geological Society of America Special Paper 397, 73-80. (pdf file)
  83. Gibbs, G.V., Cox, D.F., Crawford, T.D., Rosso, K.M., Ross, N.L., and Downs, R.T. (2006) Classification of metal-oxide bonded interactions based on local potential- and kinetic-energy densities. The Journal of Chemical Physics 124, 084704. (pdf file)
  84. Liermann, H.P., Downs, R.T., and Yang H. (2006) Site disorder revealed through Raman spectra from oriented single crystals: A case study on karooite (MgTi2O5) American Mineralogists 91, 790-793. (pdf file)
  85. Bindi, L., Downs, R.T., Harlow G.E., Safonov, O.G., Litvin, Y.A., Perchuk, L.L., Uchida, H., and Menchetti, S. (2006) Compressibility of synthetic potassium-rich clinopyroxene: In-situ high-pressure single-crystal X-ray study. American Mineralogists 91, 802-808. (pdf file)
  86. Wajima, T., Haga, M., Kuzawa, K., Ishimoto, H., Tamada, O., Ito, K., Nishiyama, T., Downs, R.T., and Rakovan, J.F. (2006) Zeolite synthesis from paper sludge ash at low temperature (90 °C) with addition of diatomite. Journal of Hazardous Materials B132, 244-252. (pdf file)
  87. Fritz E A, Origlieri M J, and Downs R T (2006) Triploidite from China. Gems and Gemology 42, 183-184. (pdf file)
  88. Schmidt G R, Reynard J, Yang H, Downs R T (2006) Tychite, Na6Mg2(SO4)(CO3)4: Structure analysis and Raman spectroscopic data. Acta Crystallographica E62, 207-209. (pdf file)
  89. Downs R T, Singh A K (2006) Analysis of deviatoric stress from nonhydrostatic pressure on a single crystal in a diamond anvil cell: The case of monoclinic aegirine, NaFeSi2O6. Journal of Physics and Chemistry of Solids 67, 1995-2000. (pdf file)
  90. Righter K, Sutton S R, Newville M, Le L, Schwandt C S, Uchida H, Lavina B, Downs R T (2006) An experimental study of the oxidation state of vanadium in spinel and basaltic melt with implication for the origin of planetary basalt. American Mineralogist 91, 1643-1656. (pdf file)
  91. Yang H, Manoun B, Downs R T, Ganguly A, Barsoum M W (2006) Crystal chemistry of layered carbide, Ti3(Si0.43Ge0.57)C2. Journal of Physics and Chemistry of Solids 67, 2512-2516. (pdf file)
  92. Manoun B, Downs R T, and Saxena S K (2006) A high-pressure Raman spectroscopic study of hafnon, HfSiO4. American Mineralogist 91, 1888-1892. (pdf file)
  93. Yang H, Lu R, Downs R T, Costin G (2006) Goethite, α–FeO(OH), from single-crystal data. Acta Crystallographica E62, i250-i252. (pdf file)
  94. Ikuta D, Kawame N, Banno S, Hirajima T, Ito K, Rakovan J F, Downs R T, Tamada O (2007) First in situ X-ray diffraction identification of coesite and retrograde quartz on a glass thin section of an ultrahigh-pressure metamorphic rock and their crystal structure details. American Mineralogist 92, 57-63. (pdf file)
  95. Yang H, Downs R T (2007) Synthesis and crystal structure of Li0.52Mg0.96Sc0.52Si2O6 orthopyroxene. American Mineralogist 92, 225-228. (pdf file)
  96. Origlieri M J, Laetsch T A, Downs R T (2007) A note on the paragenesis of ottensite. The Mineralogical Record 38, 83-84 (pdf file)
  97. Uchida H, Downs R T, Thompson R M (2007) Reinvestigation of eakerite, Ca2SnAl2Si6O18(OH)2*2H2O: H-atom positions by single-crystal X-ray diffraction and correlation with Raman spectroscopic data. Acta Crystallographica E63, i47-i49 (pdf file)
  98. Yang H, Costin G, Keogh J, Lu R, Downs R T (2007) Cobaltaustinite, CaCo(AsO4)(OH). Acta Crystallographica E63, i53-i55 (pdf file)
  99. Gibbs G V, Cox D F, Rosso K M, Ross N L, Downs R T, Spackman M A (2007) Theoretical electron density distributions for Fe- and Cu-sulfide Earth materials: A connection between bond length, bond critical point properties, local energy densities, and bonded interactions. Journal of Physical Chemistry B 111, 1923-1931 (pdf file)
  100. Burt J B, Downs R T, Costin G (2007) Single-crystal X-ray refinement of wilkinsonite, Na2Fe2+4Fe3+2Si6O20. Acta Crystallographica E63, i122-i124 (pdf file)
  101. Uchida H, Righter K, Lavina B, Nowell M M, Wright S I, Downs R T, Yang H (2007) Investigation of synthetic Mg1.3V1.7O4 spinel with MgO inclusions: Case study of a spinel with an apparently occupied interstitial site. American Mineralogist 92, 1031-1037 (pdf file)
  102. Yang H, Hubler D K, Lavina B, Downs R T, Costin G (2007) Tyrrellite, Cu(Co0.68Ni0.32)2Se4, isostructural with spinel. Acta Crystallographica C63, i73-i74 (pdf file)
  103. Yang H, Zwick J, Downs R T, Costin G (2007) Isokite, CaMg(PO4)F0.8(OH)0.2, isomorphous with titanite. Acta Crystallographica C63, i89-i90 (pdf file)
  104. Yang H, Li C, Jenkins R A, Downs R T, Costin G (2007) Kolbeckite, ScPO4·2H2O, isomorphous with metavariscite. Acta Crystallographica C63, i91-i92 (pdf file)
  105. Tenner T J, Lange R A, Downs R T (2007) The albite fusion curve re-examined: New experiments and the high-pressure density and compressibility of high albite and NaAlSi3O8 liquid. American Mineralogist 92, 1573-1585 (pdf file)
  106. Tait K T, Trouw F, Zhao Y, Brown C M, Downs R T (2007) Inelastic neutron scattering study of hydrogen in d8-THF/D2O ice clathrate. The Journal of Chemical Physics 127, 134505 (pdf file)
  107. Fritz E A, Laurs B M, Downs R T, Costin G (2007) Yellowish green diopside and tremolite from Merelani, Tanzania. Gems & Gemology 43, 146-148 (pdf file)
  108. Yang H, Sano J L, Eichler C, Downs R T, Costin G (2007) Iranite, CuPb10(CrO4)6(SiO4)2(OH)2, isomorphous with hemihedrite. Acta Crystallographica C63, i122-i124 (pdf file)
  109. Yang H, Downs R T, Costin G, Eichler C M (2007) The crystal structure of tvalchrelidzeite, Hg3SbAsS3, and a revision of its chemical formula. The Canadian Mineralogist 45, 1529-1533 (pdf file)
  110. Thompson R M, Downs R T (2008) The crystal structure of diopside at pressure to 10 GPa. American Mineralogist 93, 177-186 (pdf file)
  111. McCarthy A C, Downs R T, Thompson R M (2008) Compressibility trends of the clinopyroxenes, and in-situ high-pressure single-crystal X-ray diffraction study of jadeite. American Mineralogist 93, 198-209 (pdf file)
  112. Gibbs G V, Downs R T, Cox D F, Ross N L, Prewitt C T, Rosso K M, Lippmann T, Kirfel A (2008) Bonded interactions and the crystal chemistry of minerals: a review. Zeitschrift fur Kristallographie 223, 1-40 (pdf file)
  113. Yang H, Dembowski R F, Conrad P G, Downs R T (2008) Crystal structure and Raman spectrum of hydroxyl-bastnasite-(Ce), CeCO3(OH). American Mineralogist 93, 698-701 (pdf file)
  114. Gibbs G V, Downs R T, Cox D F, Ross N L, Boisen M B, Rosso K M (2008) Shared and closed-shell O-O interactions in silicates. Journal of Physical Chemistry A 112, 3693-3699 (pdf file)
  115. Dera P, Lavina B, Borkowski L A, Prakapenka V B, Sutton S R, Rivers M L, Downs R T, Boctor N Z, Prewitt C T (2008) High-pressure polymorphism of Fe2P and its implications for meteorites and Earth's core. Geophysical Research Letters 35, L10301 (pdf file)
  116. Nestola F, Boffa Ballaran T, Liebske C, Thompson R, Downs R T (2008) The effect of the hedenbergitic substitution on the compressibility of jadeite. American Mineralogist 93, 1005-1013 (pdf file)
  117. Yang H, Downs R T (2008) Crystal structure of glaucodot, (Co,Fe)AsS, and its relationships to marcasite and arsenopyrite. American Mineralogist 93, 1183-1186 (pdf file)
  118. Wang Z, Zhao Y, Zha C S, Xue Q, Downs R T, Duan R G, Caracas R, Liao X (2008) X-ray induced synthesis of 8H diamond. Advanced Materials 20, 3303-3307 (pdf file)
  119. Henderson R R, Yang H, Downs R T, Jenkins R A (2008) Redetermination of conichalcite, CaCu(AsO4)(OH). Acta Crystallographica E64, i53-i54 (pdf file)
  120. Pommier C J S, Redhammer G J, Denton M B, Downs R T (2008) Raman spectroscopic and visible absorption investigation of LiCrSi2O6 pyroxene under pressure. Applied Spectroscopy 62, 766-772 (pdf file)
  121. Li C, Yang H, Downs R T (2008) Redetermination of olivenite from an untwinned single-crystal. Acta Crystallographica E64, i60-i61 (pdf file)
  122. Yang H, Downs R T, Eichler C (2008) Safflorite, (Co,Ni,Fe)As2, isomorphous with marcasite. Acta Crystallographica E64, i62-i62 (pdf file)
  123. Gibbs G V, Downs R T, Cox D F, Rosso K M, Ross N L, Kirfel A, Lippmann T, Morgenroth W, Crawford T D (2008) Experimental bond critical point and local energy density properties determined for Mn-O, Fe-O, and Co-O bonded interactions for tephroite, Mn2SiO4, fayalite, Fe2SiO4, and Co2SiO4 olivine and selected organic metal complexes: Comparison with properties calculated for non-transition and transition metal M-O bonded interactions for silicates and oxides. Journal of Physical Chemistry A 112, 8811-8823 (pdf file)
  124. Hazen R M, Papineau D, Bleeker W, Downs R T, Ferry J M, McCoy T J, Sverjensky D A, Yang H (2008) Mineral evolution. American Mineralogist 93, 1693-1720 (pdf file)
  125. McCarthy A C, Downs R T, Thompson R M, Redhammer G J (2008) In situ high-pressure single-crystal X-ray study of aegirine, NaFe3+Si2O6, and the role of M1 size in clinopyroxene compressibility. American Mineralogist 93, 1829-1837 (pdf file)
  126. Righter K, Yang H, Costin G, Downs R T (2008) Oxygen fugacity in the Martian mantle controlled by carbon: New constraints from the nakhlite MIL 03346 Meteoritics & Planetary Science 43, 1709-1723 (pdf file)
  127. Gibbs G V, Wallace A F, Cox D F, Dove P M, Downs R T, Ross N L, Rosso K M (2009) Role of directed van der Waals bonded interactions in the determination of the structures of molecular arsenate solids Journal of Physical Chemistry A 113, 736-749. (pdf file)
  128. Aydin F, Thompson R M, Karsli O, Uchida H, Burt J B, Downs R T (2009) C2/c pyroxene phenocrysts from three potassic series in the Neogene alkaline volcanics, NE Turkey: their crystal chemistry with petrogenetic significance as an indicator of P-T conditions Contributions to Mineralogy and Petrology 157, online first (pdf file)
  129. Dera P, Lavina B, Borkowski L A, Prakapenka V B, Sutton S R, Rivers M L, Downs R T, Boctor N Z, Prewitt C T (2009) Structure and behavior of the barringerite Ni end-member, Ni2P, at deep Earth conditions and implications for natural Fe-Ni phosphides in planetary cores. Journal of Geophysical Research 114, B03201 (pdf file)
  130. Yang H, Konzett J, Downs R T, Frost D J (2009) Crystal structure and Raman spectrum of a high-pressure Li-rich majoritic garnet, (Li2Mg)Si2(SiO4)3, American Mineralogist 94, 630-633 (pdf file)
  131. Lavina B, Cesare B, Alvarez-Valero A M, Uchida H, Downs R T, Koneva A, Dera P (2009) Closure temperature of intracrystalline ordering in anatectic and metamorphic hercynite, Fe2+Al2O4, American Mineralogist 94, 657-665 (pdf file)
  132. Grazulis S, Chateigner D, Downs R T, Yokochi A F T, Quiros M, Lutterotti L, Manakova E, Butkus J, Moeck P, Le Bail A (2009) Crystallography open database - an open-access collection of crystal structures Journal of Applied Crystallography 42, 726-729 (pdf file)
  133. Origlieri M, Downs R T, Pinch W W, Zito G L (2009) Stibioclaudetite, a new mineral from Tsumeb, Namibia, The Mineralogical Record 40, 209-213 (pdf file)
  134. Yang H, Konzett J, Frost D J, Downs R T (2009) X-ray diffraction and Raman spectroscopic study of clinopyroxenes with six-coordinated Si in the Na(Mg0.5Si0,5)Si2O6 - NaAlSi2O6 system, American Mineralogist 94, 942-949 (pdf file)
  135. Gibbs G V, Wallace A F, Cox D F, Downs R T, Ross N L, Rosso K M (2009) Bonded interactions in silica polymorphs, silicates, and siloxane molecules. American Mineralogist 94, 1085-1102 (pdf file)
  136. Yang H, Konzett J, Downs R T (2009) Crystal structure and compressibility of a high-pressure Ti-rich oxide, (Ti0.50Zr0.26Mg0.14Cr0.10)O1.81, isomorphous with cubic zirconia. Journal of Physics and Chemistry of Solids 70, 1297-1301 (pdf file)
  137. Lowry S, Wieboldt D, Dalrymple D, Jasinevicius R, Downs R T (2009) The use of a Raman spectral database of minerals for the rapid verification of semiprecious gemstones. Spectroscopy 24(5), 1-6; http://spectroscopyonline.com (pdf file)
  138. Yang H, Pinch W W, Downs R T (2009) Crystal structure of argentopyrite, AgFe2S3, and its relationship with cubanite. American Mineralogist 94, 1727-1730 (pdf file)
  139. Yang H, Downs R T, Burt J B, Costin G (2009) Structure refinement of an untwinned single crystal of Ag-excess fizélyite, Ag5.94Pb13.74Sb20.84S48, The Canadian Mineralogist 47, 1257-1264 (pdf file)
  140. Lavina B, Dera P, Downs R T, Prakapenka V, Rivers M, Sutton S, Nicol M (2009) Siderite at lower mantle conditions and the effects of the pressure-induce spin-pairing transition, Geophysical Research Letters 36, L23306 (pdf file)
  141. Thompson R M, Downs R T (2010) Packing systematics of the silica polymorphs: The role played by O-O nonbonded interactions in the compression of quartz, American Mineralogist 95, 104-111 (pdf file)
  142. Bindi L, Downs R T, Menchetti S (2010) The crystal structure of billingsleyite, Ag7(As,Sb)S6, a sulfosalt containing As5+, The Canadian Mineralogist 48, 155-162 (pdf file)
  143. Tait K T, Yang H, Downs R T, Li C, Pinch W W (2010) The crystal structure of esperite, with a revised chemical formula, PbCa2(ZnSiO4)3, isostructural with beryllonite American Mineralogist 95, 699-705 (pdf file)
  144. Lavina B, Dera P, Downs R T, Tschauner O, Yang W, Shebanova O, Shen G (2010) Effect of dilution on the spin pairing transition in rhombohedral carbonates High Pressure Research 30, 224-229 (pdf file)
  145. Gibbs G V, Wallace A F, Zallen R, Downs R T, Ross N L, Cox D F, Rosso K M (2010) Bond paths and van der Waals interactions in orpiment, As2S3. Journal of Physical Chemistry A 114, 6550-6557 (pdf file)
  146. Schrader D L, Lauretta D S, Connolly H C, Goreva Y S, Hill D H, Domanik K J, Berger E L, Yang H, Downs R T (2010) Sulfide-rich metallic impact melts from chondritic parent bodies. Meteoritics & Planetary Sciences Early View 45, 1-16 (pdf file)
  147. Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition. Physical Review B 82, 064110 (pdf file)
  148. Barkley M C, Yang H, Downs R T (2010) Kozulite, an Mn-rich alkali amphibole. Acta Crystallographica E66, i83-i83 (pdf file)
  149. Gibbs G V, Wallace A F, Downs R T, Ross N L, Cox D F, Rosso K M (2010) Thioarsenides: a case for long-range Lewis acid-base-directed van der Waals interactions. Physics and Chemistry of Minerals 37, online first (pdf file)
  150. Kampf A R, Yang H, Downs R T, Pinch W W (2011) The crystal structures and Raman spectra of aravaipaite and calcioaravaipaite. American Mineralogist 96, 402-407 (pdf file)
  151. Yang H, Sun H J, Downs R T (2011) Hazenite, KNaMg2(PO4)2·14H2O, a new biologically related phosphate mineral, from Mono Lake, California, U.S.A., American Mineralogist 96, 675-681 (pdf file)
  152. Dera P, Lazarz J D, Prakapenka V B, Barkley M, Downs R T (2011) New insights into the high-pressure polymorphism of SiO2 cristobalite. Physics and Chemistry of Minerals 38, 517-529. (pdf file)
  153. Barkley M, Downs R T, Yang H (2011) Structure of walstromite, BaCa2Si3O9, and its relationship to CaSiO3-walstromite and walstromite-II. American Mineralogist 96, 797-801 (pdf file)
  154. Hazen R M, Bekker A, Bish D L, Bleeker W, Downs R T, Farquhar J, Ferry J M, Grew E S, Knoll A H, Papineau D, Ralph J P, Sverjensky D A, Valley J W (2011) Needs and opportunities in mineral evolution research. American Mineralogist 96, 953-963. (pdf file)
  155. Yang H, Downs R T, Evans S H, Feinglos M N, Tait K T (2011) Crystal structure of uchucchacuaite, AgMnPb3Sb5S12, and its relationship with ramdohrite and fizelyite. American Mineralogist 96, 1186-1189. (pdf file)
  156. Yang H, Jenkins R A, Downs R T, Evans S H, Tait K T (2011) Rruffite, Ca2Cu(AsO4)2·2H2O, a new member of the roselite group, from Tierra Amarilla, Chile, The Canadian Mineralogist, 49, 877-884. (pdf file)
  157. Barkley M C, Yang H, Evans S H, Downs R T, Origlieri M J (2011) Redetermination of despujolsite, Ca3Mn4+(SO4)2(OH)6·3H2O, Acta Crystallographica E67, i47-i48. (pdf file)
  158. Righter K, Sutton S, Danielson L, Pando K, Schmidt G, Yang H, Berthet S, Newville M, Choi Y, Downs R T, Malavergne V (2011) The effect of fO2 on the partitioning and valence of V and Cr in garnet/melt pairs and the relation to terrestrial mantle V and Cr content. American Mineralogist 96, 1278-1290. (pdf file)
  159. Thompson R M, Downs R T, Dera P (2011) The compression pathway of quartz. American Mineralogist American Mineralogist 96, 1495-1502. (pdf file)
  160. Lavina B, Dera P, Kim E, Meng Y, Downs R T, Weck P F, Sutton S R, Zhao Y (2011) Discovery of the recoverable high-pressure iron oxide Fe4O5. Proceedings of the National Academy of Sciences 108, 17281-17284. (pdf file)
  161. Yang H, Downs R T, Yang Y W (2011) Lithiomarsturite, LiCa2Mn2Si5O14(OH). Acta Crystallographica E67, i73-i73 (pdf file)
  162. Kampf A R, Downs R T, Housley R M, Jenkins R A, Hyrsl J (2011) Anorpiment, As2S3, the triclinic dimorph of orpiment, Mineralogical Magazine 75, 2857-2867 (pdf file)
  163. Yang H, Evans S H, Downs R T, Jenkins R A (2011) The crystal structure of vladimirite, with a revised chemical formula, Ca4(AsO4)2(AsO3OH)·4H2O, The Canadian Mineralogist 49, 1055-1064 (pdf file)
  164. Yang H, Downs R T, Yang Y W, Allen W H (2011) Pyrosmalite-(Fe), Fe8Si6O15(OH,Cl)10, Acta Crystallographica E68, i7-i8 (pdf file)
  165. Grazulis S, Daskevic A, Merkys A, Chateigner D, Lutterotti L, Quiros M, Serebryanaya N R, Moeck P, Downs R T, Le Bail A (2012) Crystallography Open Database (COD): an open-access collection of crystal structures and platforms for world-wide collaboration. Nucleic Acids Research 40, D420-D427. doi:10.1093/nar/gkr900 (pdf file)
  166. Yang Y W, Evans S H, Downs R T, Yang H (2012) Lotharmeyerite, Ca(Zn,Mn)2(AsO4)2(H2O,OH)2, Acta Crystallographica E68, i9-i10 (pdf file)
  167. Morrison S M, Downs R T, Yang H (2012) Redetermination of kovdorskite, Mg2PO4(OH)·3H2O, Acta Crystallographica E68, i12-i13 (pdf file)
  168. Posner E S, Konzett J, Frost D J, Downs R T, Yang H (2012) High-pressure synthetic (Na0.97Mg0.03)(Mg0.43Fe3+0.17Si0.40)Si2O6, with six-coordinated silicon, isostructural with P2/n omphacite, Acta Crystallographica E68, i18-i18 (pdf file)
  169. Yang H, Jenkins R A, Thompson R M, Downs R T, Evans S H, Bloch E M (2012) Markascherite, Cu3(MoO4)(OH)4, a new mineral species polymorphic with szenicsite, from Copper Creek, Pinal County, Arizona, U.S.A. American Mineralogist 97, 197-202 (pdf file)
  170. Fejfarová K, Plášil J, Yang H, Cejka J, Dušek M, Downs R T, Barkley M C, Škoda R (2012) Revision of the crystal structure and chemical formula of weeksite, K2(UO2)2(Si5O13)·4H2O American Mineralogist 97, 750-754 (pdf file)
  171. Menezes L A D, Yang H, Downs R T, Chaves L S C, Persiano A C (2012) Lithiotantite, ideally LiTa3O8, Acta Crystallographica E68, i27-i28 (pdf file)
  172. Bindi L, Downs R T, Spry P G, Pinch W W, Menchetti S (2012) A chemical and structural re-examination of fettelite samples from the type locality, Odenwald, southwest Germany, Mineralogical Magazine 76, 551-566 (pdf file)
  173. Blake D, Vaniman D, Achilles C, Anderson R, Bish D, Bristow T, Chen C, Chipera S, Crisp J, Des Marais D, Downs R T, Farmer J, Feldman S, Fonda M, Gailhanou M, Ma H, Ming D W, Morris R V, Sarrazin P, Stolper E, Treiman A, Yen A (2012) Characterization and calibration of the CheMin mineralogical instrument on Mars Science Laboratory, Space Science Reviews 170, 341-399. (pdf file)
  174. Hazen R M, Golden J, Downs R T, Hystad G, Grew E S, Azzolini D, Sverjensky D A (2012) Mercury (Hg) mineral evolution: A mineralogical record of supercontinent assembly, changing ocean geochemistry, and the emerging terrestrial biosphere. American Mineralogist 97, 1013-1042 (pdf file)
  175. Morrison S M, Downs R T, Domanik K J, Yang H, Doell D (2012) Nioboaeschynite-(Ce), Ce(NbTi)O6. Acta Crystallographica E68, i64-i65 (pdf file)
  176. Yang H, Jenkins N G, Downs R T (2012) Redetermination of junitoite, CaZn2Si2O7·H2O. Acta Crystallographica E68, i73-i73 (pdf file)
  177. Andrade M B, Morrison S M, Di Domizio A J, Feinglos M N, Downs R T (2012) Robertsite, Ca2MnIII3O2(PO4)·3H2O. Acta Crystallographica E68, i74-i75 (pdf file)
  178. Origlieri M J, Yang H, Downs R T, Posner E S, Domanik K J, Pinch W W (2012) The crystal structure of bartelkeite, with a revised chemical formula, PbFeGeVI(GeIV2O7)(OH)2·H2O, isotypic with high-pressure P21/m lawsonite, American Mineralogist 97, 1812-1815 (pdf file)
  179. Di Domizio A J, Downs R T, Yang H (2012) Redetermination of clinobarylite, BaBe2Si2O7. Acta Crystallographica E68, i78-i79 (pdf file)
  180. Thompson R M, Yang H, Downs R T (2012) Packing systematics and structural relationships of the new copper molybdate markascherite and related minerals. American Mineralogist 97, 1977-1986 (pdf file)
  181. Weirich J R, Swindle T D, Isachsen C E, Sharp T G, Li C, Downs R T (2012) Source of potassium in shocked ordinary chondrites Geochimica et Cosmochimica Acta 98, 125-139 (pdf file)
  182. McKay N P, Dettman D L, Downs R T, Overpeck J T (2012) On the potential of Raman-spectroscopy-based carbonate mass spectrometry Journal of Raman Spectroscopy 44, 469-474 (pdf file)
  183. Yang H, Downs R T, Evans S H, Jenkins R A, Bloch E M (2013) Rongibbsite, Pb2(Si4Al)O11(OH), a new zeolitic aluminosilicate mineral with an interrupted framework from Maricopa County, Arizona, U.S.A. American Mineralogist 98, 236-241 (pdf file)
  184. Bowman M G, Downs R T, Yang H (2013) Penikisite, BaMg2Al2(PO4)3(OH)3. Acta Crystallographica E69, i4-i5 (pdf file)
  185. Origlieri M J, Downs R T (2013) Schaurteite, Ca3Ge(SO4)2(OH)6·3H2O. Acta Crystallographica E69, i6-i6 (pdf file)
  186. Schumer B N, Downs R T, Domanik K J, Andrade M B, Origlieri M J (2013) Pirquitasite, Ag2ZnSnS4. Acta Crystallographica E69, i8-i9 (pdf file)
  187. Morrison S M, Andrade M B, Wenz M D, Domanik K J, Downs R T (2013) Lanthanite-(Nd), Nd2(CO3)3·8H2O. Acta Crystallographica E69, i15-i16 (pdf file)
  188. Hazen R M, Downs R T, Jones A P, Kah L (2013) Carbon mineralogy and crystal chemistry. Reviews in Mineralogy and Geochemistry 75, 7-46 (pdf file)
  189. Hazen R M, Downs R T, Kah L, Sverjensky D (2013) Carbon mineral evolution. Reviews in Mineralogy and Geochemistry 75, 79-107 (pdf file)
  190. Golden J, McMillan M, Downs R T, Hystad G, Goldstein I, Stein H J, Zimmerman A, Sverjensky D A, Armstrong J T, Hazen R M (2013) Rhenium variations in molybdenite (MoS2): Evidence for progressive subsurface oxidation. Earth and Planetary Science Letters 366, 1-5 (pdf file)
  191. Dera P, Zhuravlev K, Prakapenka V, Rivers ML, Finkelstein GJ, Grubor-Urosevic O, Tschauner O, Clark SM, Downs R T (2013): High pressure single-crystal micro X-ray diffraction analysis with GSE_ADA/RSV software, High Pressure Research: An International Journal, (DOI:10.1080/08957959.2013.806504) (pdf file)
  192. Andrade M B, Doell D, Downs R T, Yang H (2013) Redetermination of katayamalite, KLi3Ca7Ti2(SiO3)12(OH)2, Acta Crystallographica E69, i41-i41 (pdf file)
  193. Yang H, Downs R T, Evans S H, Pinch W W (2013) Scottyite, the natural analog of synthetic BaCu2Si2O7, a new mineral from the Wessels mine, Kalahari Manganese Fields, South Africa. American Mineralogist 98, 478-484 (pdf file)
  194. Yang H, Downs R T, Evans S H, Pinch W W (2013) Terrywallaceite, AgPb(Sb,Bi)3S6, isotypic with gustavite, a new mineral from Mina Herminia, Julcani Mining District, Huancavelica, Peru. American Mineralogist 98, 1310-1314 (pdf file)
  195. Dera P, Finkelstein G, Duffy T S, Downs R T, Meng Y, Prakapenka V, Tkachev S (2013) Metastable high-pressure transformations of orthoferrosilite Fs82. Physics of Earth and Planetary Interiors 181, 2914-2917 (pdf file)
  196. Thompson R M, Xie X, Zhai S, Downs R T, Yang H (2013) A comparison of the Ca3(PO4)2 and CaSiO3 systems, with a new structure refinement of tuite synthesized at 15 GPa and 1300 ºC. American Mineralogist 98, 1585-1592 (pdf file)
  197. Morrison S M, Domanik K J, Origlieri M J, Downs R T (2013) Agardite-(Y), Cu2+6Y(AsO4)3(OH)6·3H2O. Acta Crystallographica E69, i61-i62 (pdf file)
  198. Blake D F, Morris R V, Kocurek G, Morrison S M, Downs R T, Bish D, Ming D W, Edgett K S, Rubin D, Goetz W, Madsen M B, Sullivan R, Gellert R, Campbell I, Treiman A H, McLennan S M, Yen A S, Grotzinger J, Vaniman D T, Chipera S J, Achilles C N, Rampe E B, Summer D, Meslin P Y, Maurice S, Forni O, Gasnault O, Fisk M, Schmidt M, Mahaffy P, Leshin L A, Glavin D, Steele A, Freissnet C, Navarro-Gonzalez R, Yingst R A, Kah L C, Bridges N, Lewis K W, Bristow T F, Farmer J D, Crisp J A, Stolper E M, Des Marais D J, Sarrazin P, MSL Science Team (2013) Curiosity at Gale Crater, Mars: Characterization and analysis of the Rocknest sand shadow. Science 341, DOI: 10.1126/science.1239505 (pdf file)
  199. Bish D L, Blake D F, Vaniman D T, Chipera S J, Morris R V, Ming D W, Treiman A H, Sarrazin P, Morrison S M, Downs R T, Achilles C N, Yen A S, Bristow T F, Crisp J A, Morookian J M, Farmer J D, Rampe E B, Stolper E M, Spanovich N, MSL Science Team (2013) X-ray diffraction results from Mars Science Laboratory: Mineralogy of Rocknest at Gale Crater. Science 341, DOI: 10.1126/science.1238932 (pdf file)
  200. Vaniman D T, Bish D L, Ming D W, Bristow T F, Morris R V, Blake D F, Chipera S J, Morrison S M, Treiman A H, Rampe E B, Rice M, Achilles C N, Grotzinger J, McLennan S M, Williams J, Bell J, Newsom H, Downs R T, Maurice S, Sarrazin P, Yen A S, Morookian J M, Farmer J D, Stack K, Milliken R E, Ehlmann B, Sumner D Y, Berger G, Crisp J A, Hurowitz J A, Anderson R, DesMarais D, Stolper E M, Edgett K S, Gupta S, Spanovich N, MSL Science Team (2014) Mineralogy of a mudstone at Yellowknife Bay, Gale Crater, Mars. Science 343, DOI: 10.1126/science.1243480 (pdf file)
  201. Yang H, Downs R T, Evans S H, Pinch W W (2014) Lavinskyite, K(LiCu)Cu6(Si4O11)2(OH)4, isotypic with plancheite, a new mineral from the Wessels mine, Kalahari Manganese Fields, South Africa. American Mineralogist 99, 525-530 (pdf file)
  202. Lavina B, Dera P, Downs R T (2014) Modern X-ray diffraction methods in mineralogy and geosciences. Reviews in Mineralogy & Geochemistry 78, 1-31 (pdf file)
  203. Lafuente B, Downs R T, Yang H and Jenkins R A (2014) Calcioferrite with composition (Ca3.94Sr0.06)Mg1.01(Fe2.93Al1.07)(PO4)6(OH)4·12H2O. Acta Crystallographica E70, 116-117 (pdf file)
  204. Andrade M B, Yang H, Downs R T, Jenkins R A, Fay I (2014) Te-rich raspite, Pb(W0.56Te0.44)O4, from Tombstone, Arizona, U.S.A.: The first natural example of Te6+ substitution for W6+. American Mineralogist 99, 1507-1510 (pdf file)
  205. Yang H, Martinelli L, Tasso F, Sprocati A R, Pinzari F, Liu Z, Downs R T, Sun H J (2014) A new biogenic, struvite-related phosphate, the ammonium-analog of hazenite, (NH4)NaMg2(PO4)2·14H2O. American Mineralogist 99, 1761-1766 (pdf file)
  206. Posner E S, Dera P, Downs R T, Lazarz J D, Irmen P (2014) High-pressure single-crystal X-ray diffraction study of jadeite and kosmochlor. Physics and Chemistry of Minerals 41, 695-707 (pdf file)
  207. Hazen R M, Liu X M, Downs R T, Golden J, Pires A J, Grew E S, Hystad G, Estrada C, Sverjensky D A (2014) Mineral evolution: Episodic metallogenesis, the supercontinent cycle, and the coevolving geosphere and biosphere. Society of Economic Geologists Special Publication 18, 1-15 (pdf file)
  208. Downs R T (2014) Pauling's rules, in a world of non-spherical atoms. American Mineralogist 99, 1817-1817 (Invited) (pdf file)
  209. Bish D, Blake D, Vaniman D, Sarrazin P, Bristow T, Achilles C, Dera P, Chipera S, Crisp J, Downs R T, Farmer J, Gailhanou M, Ming D, Morookian J M, Marris R, Morrison S, Rampe E, Treiman A, Yen A (2014) The first X-ray diffraction measurements on Mars. IUCrJ 1, 514-522 (pdf file)
  210. Treiman A H, Morris R V, Agresti D G, Graff T G, Achilles C N, Rampe E B, Bristow T F, Ming D W, Blake D F, Vaniman D T, Bish D L, Chipera S J, Morrison S M, Downs R T (2014) Ferrian saponite from the Santa Monica Mountains (California, U.S.A., Earth): Characterization as an analog for clay minerals on Mars with application to Yellowknife Bay in Gale Crater. American Mineralogist 99, 2234-2250 (pdf file)
  211. Anderson A J, Yang H, Downs R T (2015) Hydrothermal synthesis and crystal structure of AlSO4(OH): A titanite-group member. American Mineralogist 100, 330-333 (pdf file)
  212. Lafuente B, Yang H, Downs R T (2015) Crystal structure of tetrawickmanite, Mn2+Sn4+(OH)6. Acta Crystallographica E71, 234-237 (pdf file)
  213. Downs R T, MSL Science Team (2015) Determining mineralogy on Mars with the CheMin X-ray diffractometer. Elements 11, 45-50 (pdf file)
  214. Bristow T F, Bish D L, Vaniman D T, Morris R V, Blake D F, Grotzinger J P, Rampe E B, Crisp J A, Achilles C H, Ming D W, Ehlmann B L, King P L, Bridges J C, Eigenbrode J L, Sumner D Y, Chipera S J, Moorokian J M, Treiman A H, Morrison S M, Downs R T, Farmer J D, Des Marais D, Sarrazin P, Floyd M M, Mischna M A, McAdam A C (2015) The origin and implications of clay minerals from Yellowknife Bay, Gale crater, Mars. American Mineralogist 100, 824-836 (pdf file)
  215. Hystad G, Downs R T, Hazen R M (2015) Mineral species frequency distribution conforms to a Large Number of Rare Events model: Prediction of Earth's missing minerals. Mathematical Geosciences DOI 10.1007/s11004-015-9600-3 (pdf file)
  216. Hystad G, Downs R T, Grew E S, Hazen R M (2015) Statistical analysis of mineral diversity and distribution: Earth's mineralogy is unique. Earth and Planetary Science Letters 426, 154-157 (pdf file)
  217. Hazen R M, Hystad G, Downs R T, Golden J J, Pires A J, Grew E S (2015) Earth's "missing" minerals. American Mineralogist 100, 2344-2347 (pdf file)
  218. Xie X, Yang H,, Gu X, Downs R T (2015) Chemical composition and crystal structure of merrillite from the Suizhou meteorite American Mineralogist 100, 2753-2756 (pdf file)
  219. Lafuente B, Downs R T, Yang H, Stone N (2015) The power of databases: the RRUFF project. In: Highlights in Mineralogical Crystallography, T Armbruster and R M Danisi, eds. Berlin, Germany, W. De Gruyter, pp 1-30 (pdf file)
  220. Lafuente B, Downs R T (2016) Redetermination of brackebuschite, Pb2Mn3+(VO4)2(OH). Acta Crystallographica E72, 293-296 (pdf file)
  221. Treiman A H, Bish D L, Vaniman D T, Chipera S J, Blake D F, Ming D W, Morris R V, Bristow T F, Morrison S M, Baker M B, Rampe E B, Downs R T, Filberto J, Glazner A F, Gellert R, Thompson L M, Schmidt M E, Le Deit L, Wiens R C, McAdam A C, Achilles C N, Edgett K S, Farmer J D, Fendrich K V, Grotzinger J P, Gupta S, Morookian J M, Newcombe M E, Rice M S, Spray J G, Stolper E M, Sumner D Y, Vasavada A R, Yen A S (2016) Mineralogy, provenance, and diagenesis of a potassic basaltic sandstone on Mars: CheMin X-ray diffraction of the Windjana sample (Kimberley area, Gale Crater). Journal of Geophysical Research: Planets 121, 75-106 (pdf file)
  222. Hazen R M, Hummer D R, Hystad G, Downs R T, Golden J J (2016) Carbon mineral ecology: Predicting the undiscovered minerals of carbon. American Mineralogist 101, 889-906 (pdf file)
  223. Yang H, Barton I F, Andrade M B, Downs R T (2016) Crystal structure of a new compound, CuZnCl(OH)3, isostructural with botallackite. American Mineralogists 101, 986-990 (pdf file)
  224. Morris R V, Vaniman D T, Blake D F, Gellert R, Chipera S J, Rampe E B, Ming D W, Morrison S M, Downs R T, Treiman A H, Yen A S, Grotzinger J P, Achilles C N, Bristow T F, Crisp J A, Des Marais D J, Farmer J D, Fendrich K V, Frydenvang J, Graff T G, Morookian J M, Stolper E M, Schwenzer S P (2016) Silicic volcanism on Mars evidenced by tridymite in high-SiO2 sedimentary rock at Gale crater. Proceedings of the National Academy of Sciences of the United States of America 113, early edition, doi: 10.1073/pnas.1607098113 (pdf file)
  225. Fendrich K V, Downs R T, Origlieri M J (2016) Redetermination of ruizite, Ca2Mn3+2[Si4O11(OH)](OH)2·2H2O. Acta Crystallographica E72, 959-963 (pdf file)
  226. Kobsch A, Downs R T, Domanik K J (2016) Redetermination of metarossite, CaV5+2O6·2H2O. Acta Crystallographica E72, 1280-1284 (pdf file)
  227. Cohn C, Leung S L, Crosby J, Lafuente B, Zha Z, Teng W, Downs R, Wu X (2016) Lipid-mediated protein functionalization of electrospun polycaprolactone fibers. eXPRESS Polymer Letters 10, 430-437 (pdf file)
  228. Downs R T, Pinch W W, Thompson R M, Evans S H, Megaw L (2016) Yangite, PbMnSi3O8·H2O, a new mineral species with double wollastonite silicate chains, from the Kombat mine, Namibia American Mineralogist 101, 2539-2543 (pdf file)
  229. Thompson R M, Yang H, Downs R T (2016) Ideal wollastonite and the structural relationship between the pyroxenoids and pyroxenes American Mineralogist 101, 2544-2553 (pdf file)
  230. Shelton H, Barkley M C, Downs R T, Miletich R, Dera P (2016) Hydrogen bond effects on compressional behavior of isotypic minerals: high-pressure polymorphism of cristobalite-like Be(OH)2. Physics and Chemistry of Minerals 43, 571-586 (pdf file)
  231. D'Avela C, Bao J, Croxen F W, Downs R T, Fickett S, Rodrigues H, Rothstein D, Thompson J J (2016) Preliminary Method to Determine CO2 Sequestration in Cementitious Units. The Masonry Society Journal 34, 19-28 (pdf file)
  232. Morrison S M, Domanik K J, Yang H, Downs R T (2016) Petersite-(Ce), Cu2+6Ce(PO4)3(OH)6·3H2O, a new mixite group mineral from Yavapai County, Arizona, USA. The Canadian Mineralogist 54, 1505-1511 (pdf file)
  233. Hazen R M, Hystad G, Golden J J, Hummer D R, Liu C, Downs R T, Morrison S M, Ralph J, Grew E S (2017) Cobalt mineral ecology American Mineralogist 102, 108-116 (pdf file)
  234. Hystad G, Downs R T, Hazen R M, Golden J (2017) Relative Abundances of Mineral Species: A Statistical Measure to Characterize Earth-like Planets Based on Earth's Mineralogy Mathematical Geosciences 49(2), 179-194 (pdf file)
  235. Xu J, Zhang D, Fan D, Downs R T, Hu Y, Dera P K (2017) Isosymmetric pressure-induced bonding increase changes compression behavior of clinopyroxenes across jadeite-aegirine solid solution in subduction zones. Journal of Geophysical Research: Solid Earth, 122, 142-157 (pdf file)
  236. Schumer B N, Andrade M B, Evans S H, Downs R T (2017) A new formula and crystal structure for nickelskutterudite, (Ni,Co,Fe)As3, and occupancy of the icosahedral cation site in the skutterudite group. American Mineralogist 102, 205-209 (pdf file)
  237. Hazen R M, Grew E S, Origlieri M J, Downs R T (2017) On the mineralogy of the "Anthropocene Epoch". American Mineralogist 102, 595-611 (pdf file)
  238. Liu C, Hystad G, Golden J J, Hummer D R, Downs R T, Morrison S M, Ralph J P, Hazen R M (2017) Chromium mineral ecology American Mineralogist 102, 612-619 (pdf file)
  239. Hummer D R, Noll B C, Hazen R M, Downs R T (2017) Crystal structure of abelsonite, the only known crystalline geoporphyrin. American Mineralogist 102, 1129-1132 (pdf file)
  240. Andrade M B, Yang H, Atencio D, Downs R T, Chukanov N V, Lemee-Cailleau M H, Persiano A I C, Goeta A E, Ellena J (2017) Hydroxycalciomicrolite, Ca1.5Ta2O6(OH), a new member of the microlite group from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. Mineralogical Magazine 81, 555-564 (pdf file)
  241. Yen A S, Ming D W, Vaniman D T, Gellert R, Blake D F, Morris R V, Morrison S M, Bristow T F, Chipera S J, Edgett K S, Treiman A H, Clark B C, Downs R T, Farmer J D, Grotzinger J P, Rampe E B, Schmidt M E, Sutter B, Thompson L M, MSL Science Team (2017) Multiple stages of aqueous alteration along fractures in mudstone and sandstone strata in Gale Crater, Mars. Earth and Planetary Science Letters 471, 186-198 (pdf file)
  242. Schumer B N, Yang H, Downs R T (2017) Natropalermoite, Na2SrAl4(PO4)4(OH)4, a new mineral isostructural with palermoite, from the Palermo No. 1 mine, Groton, New Hampshire, USA Mineralogical Magazine 81, 833-840 (pdf file)
  243. Lafuente B, Downs R T, Origlieri M J, Domanik K J, Gibbs R B, Rumsey M S (2017) New data on hemihedrite from Arizona. Mineralogical Magazine 81, 1021-1030 (pdf file)
  244. Morrison S M, Liu C, Eleish A, Prabhu A, Li C, Ralph J, Downs R T, Golden J J, Fox P, Hummer D R, Meyer M B, Hazen R M (2017) Network analysis of mineralogical systems. American Mineralogist 102, 1588-1596 (pdf file)
  245. Shannon R C, Lafuente B, Shannon R D, Downs R T, Fischer R X (2017) Refractive indices of minerals and synthetic compounds. American Mineralogist 102, 1906-1914 (pdf file)
  246. Rampe E B, Ming D W, Blake D F, Bristow T F, Chipera S J, Grotzinger J P, Morris R V, Morrison S M, Vaniman D T, Yen, A S, Achilles C N, Craig P I, Des Marais D J, Downs R T, Farmer J D, Fendrich K V, Gellert R, Hazen R M, Kay L C, Morookian J M, Peretyazho T S, Sarrazin P, Treiman A H, Berger J A, Eigenbrode J, Fairén A G, Forni O, Gupta S, Hurowitz J A, Lanza N L, Schmidt M E, Siebach K, Sutter B, Thompson L M (2017) Mineralogy of an ancient lacustrine mudstone succession from the Murray formation, Gale crater, Mars. Earth and Planetary Science Letters 471, 172-185 (pdf file)
  247. Lavinsky R, Downs R T (2017) In memoriam: William Wallace Pinch (1940-2017). Rocks & Minerals 92, 485-488. (pdf file)

Books:
Funding:
Press Release:
Last updated: Sep 7, 2013
Return to pages of the Mineralogy and Crystallography Group
in the Geosciences Department of the University of Arizona