$350.00 €300 £270.00 approx. This specimen is priced in US dollars, all other prices are approximate.
A most attractive creamy-white Dolomite cast after Calcite with a silky-pearlescent lustre, taking the form of a small crab shell. Occasional crystals of acidic-apple-green Duftite are dotted over the convex upper surface; beneath, in the concave parts of the cast, rich patches of Duftite occur. A terrific Dolomite cast from the Tsumeb mine in Namibia.