Malachite pseudomorph after Cuprite on Calcite

This is a lovey and rare example of Malachite pseudomorphing after Cuprite from the Tsumeb mine in Namibia.  Despite Malachite and Cuprite being almost ubiquitous throughout the mine, such pseudomorphs are rarely seen and especially to this degree of sharpness.  Both Cuprite crystals measure 3 to 4 mm across and are perched opposite one another at one end of a crystallised Calcite matrix.  This is most certainly a rare and perfectly formed example from Tsumeb.