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Glaucophane, Garnet Group


Glaucophane : [ ][Na2][Mg3Al2][(OH)2|Si8O22], Garnet Group : X3Z2(SiO4)3 (X=Ca, Fe, etc· Z=Al, Cr, etc·)

Photo Copyright © Karl Volkman 04/05  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Sonoma Co., California, USA
A group of bluish black crystals with red garnet group crystals and an ? green mineral. The field of view is 1mm. Photographed by, and in the collection of, Karl Volkman.

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