Wood, B. J. Department of Geophysical Sciences, University of Chicago, Chicago, Illinois.
Last reviewed:April 2021
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A hard, dense silicate mineral which occurs as crystals of cubic symmetry in a wide range of geologic environments. The general chemical formula of the silicate garnet group is A3B2(SiO4)3 where, in natural occurrences, the A cations are dominantly Fe2, Mn2, Mg, and Ca and the B cations are Al, Fe3, and Cr3.
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