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Calcite on Duftite (Tsumeb Mine, Otjikoto Region, Namibia.)
Tsumeb Mine, Otjikoto Region, Namibia. 40mm x 28mm x 9mm.
This small, pretty specimen is quite intricate - Calcite sits atop Duftite, which is in turn sitting upon a red dolomite cast.
A specimen we are rather loathe to part with!