$150 / £97 / €114
This specimen is priced in US dollars, all other prices are approximate
CALCITE with BOULANGERITE inclusions
4.5 x 4.5 x 4 cm (Small Cabinet)
Intergrown bladed Calcite crystals form a nearly spherical rosette formed of funky zig-zag shaped flattened rhombohedral crystals. The Calcite is included by Boulangerite which gives it the opaque dark grey colour. In several areas, clusters of hair-like metallic grey Boulangerite crystals are present on the surface.
More info on this mineral species
Kristalle and Crystal Classics