This Specimen has been sold.
2.05" Translucent Sphalerite Crystals with Galena - China
Here is a beautiful, 2.05" wide specimen with translucent, orange sphalerite crystals and galena crystals, all on a bed of druzy quartz. This specimen was collected from the Shuikoushan Mine in the Shuikoushan ore field of China.
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.