Geos 306, Fall 2009, Lecture 14
Mineralogy of the Upper Mantle



Olivine


Pyroxene
Enstatite
Mg2Si2O6
Ferrosilite
Fe2Si2O6
Jadeite
NaAlSi2O6
Diopside
CaMgSi2O6
Hedenbergite
CaFeSi2O6
Spodumene
LiAlSi2O6

Garnet
Pyrope Mg3Al2(SiO4)3
Almandine
Fe3Al2(SiO4)3
Spessartine
Mn3Al2(SiO4)3
Uvarovite
Ca3Cr2(SiO4)3
Grossular
Ca3Al2(SiO4)3
Andradite
Ca3Fe2(SiO4)3


Spinel
Spinel MgAl2O4
Hercynite
Fe2+Al2O4
Chromite
Fe2+Cr2O4
Magnetite
Fe2+Fe3+2O4
Ringwoodite
Mg2SiO4


The Composition of the Upper Mantle


The Composition of the Earth

Reading
Wenk & Bulakh, Chapter 35