7.5" Sphalerite and Dolomite on Galena - Pine Point Mine, Canada

This is a 7.5" wide specimen of sparkling sphalerite aggregations and dolomite crystals on galena, collected from the Pine Point Mine in Canada. This mineral specimen was collected by Tony Gordian.

Galena is a lead-based mineral and the primary ore of lead, and has been used for its lead content for thousands of years. Galena typically displays a gray metallic luster and forms cubes or octahedral crystals. The chemical composition of galena is PbS.

While galena will not pose a health hazard by sitting on the shelf or even from casual handling, we suggest washing hands following handling due to the mineral's lead content.

Sphalerite is a part of the sulfide group and typically exhibits a grey/black appearance due to high concentrations of impurities. In its purest state, sphalerite's 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 since iron easily replaces zinc in the process of formation.

Sphalerite, Dolomite & Galena
Pine Point Mine, Northwest Territories, Canada
Specimen 7.5 x 3.1"