Learn about Chalcocite
dark steel-gray crystals with bright metallic luster and dramatic twinning; rare, well-formed specimens attract collectors and highlight sites.Chalcocite from Tsumeb Mine, Namibia
gunmetal-gray crystals with bright faces, striations, and twinning; rare, well-formed Tsumeb specimens prized for precision metallic luster.Tsumeb
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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