David K. Joyce

Tetrahedrite, Calcite

10.0x8.2x3.5 cm


Tetrahedrite, CalciteTetrahedrite, Calcite

Item number: 19176

A superb plate of sharp tetrahedrite crystals that totally cover a matrix of sphalerite and pyrite. The tetrahedrite crystals have a coating of preferentially deposited, tiny, white calcite crystals that have formed on just one side of the crystals. Sort of like snow on tree branches. Nice!