Sillimanite with Garnet
Collection
John Betts - Fine Minerals
Description
Flat plate of gray Sillimanite with poorly crystallized red-purple
Garnet
s frozen in the surface. Two classic indicator minerals that identify the pressure and temperature of the rock formation. Ex. A. Lincoln Sherk II, MD. (1896-1970)
Locality
Warren County, New York
Dimensions
6 x 5 x 2 cm.
Specimen Grade
A
Photograph
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