David K. Joyce

Calcite, Willemite

3.9x3.6x2.1 cm
Tsumeb Mine

Calcite, WillemiteCalcite, WillemiteCalcite, Willemite

Item number: 27434

This is an odd one. The top of the piece is mostly calcite crystals that grade from brownish to colourless. They are mostly covering a botryoidal white mineral, with pearly lustre, that I believe is willemite. As well, there are small hexagonal willemite crystals around the edges. Lightly fluorescent.