A particularly splendid Dolomite cast from the Tsumeb Mine, well known for these mineralogical curiosities. A sandy coloured botryoidal-knobbly formation of Dolomite has formed over crystals of probable Calcite since dissolved away, and leaving the Dolomite as a cast. A druse of sparkling translucent white to colourless crystals of Calcite has mostly covered the Dolomite is areas. A fine specimen of a Dolomite cast.
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