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A rich thumbnail specimen of the very rare hydrated lead zinc arsenate species, Tsumcorite, from the Type Locality of Tsumeb mine in Namibia. Extensive rusty orange coloured acicular Tsumcorite microcrystals and matted aggregates coat large parts of this specimen and permeate through the matrix. The largest crystallized area measures 9 x 7 mm in extent.
12 x 12 x 10 mm