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Dioptase on Calcite

Tsumeb Mine, Tsumeb
Otjikoto Region, Namibia
Gift of Mrs. David Craven
9999.0800.2999.0000

This is a dioptase on calcite from Tsumeb in Namibia. Dioptase is commonly associated with white calcite or dolomite and other copper minerals. Notable localities for dioptase are Namibia, the Democratic Republic of the Congo, Russia, Chile, California and Arizona.