Tsumeb, Namibia

5.5 x 3.5 x 1.8 cm
2.2 x 1.4 x 0.7 in

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A mass of spongey native Copper with a dark, almost black color. Under 10x magnification, the black appears to be a crust of micro crystals of Cuprite.A few well formed crystals can be found at the base. The specimen is in very good condition with no appreciable damage.