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A beautiful dioptase on calcite specimen from the Tsumeb Mine. Gemmy and lustrous, emerald-green dioptase crystals to 1.0 cm are aesthetically scattered as isolated crystals or in clusters on the highly complimentary, glassy calcite rhombs. Ex. Rob Smith Collection.
Tsumeb, Namibia — world-renowned locality famed for a rich copper–lead–zinc ore pipe, with dioptase on calcite, azurite blades, and smithsonite prized by colle…
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