3" Sphalerite With Calcite, Quartz & Pyrite - Peru

This is a specimen of shiny, metalic Sphalerite associated with white calcite, quartz crystals and pyrite from the Huanzala Mine in Peru. The entire piece measures 3" wide and comes with a display stand.

Sphalerite is a part of the sulfides group and typically exhibits a grey/black appearance due to high concentrations of impurities. When sphalerite is in it's purest state, the chemical composition is ZnS, and can display a gemmy transparent light tan/yellow color. This is one of the few minerals that can form crystals ranging anywhere between gemmy and transparent to opaque and metallic-like. Opaque or cloudy sphalerite tends to be most abundant, due to the ease of iron replacing zinc in the process of formation.
Quartz, Calcite, Pyrite & Sphalerite
Huanzala Mine, Bolognesi, Peru
3 x 2.4 x 1.8"