1.3" Cubic Galena and Chalcopyrite Association - Peru

This beautiful specimen contains an association of cubic galena and chalcopyrite crystals. It comes from the Huanzala Mine in Peru and the entire piece measures 1.3" wide.

Galena is a lead based mineral that is in fact 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 lead content of the mineral.

Chalcopyrite is a brass-yellow colored mineral which is one of the most important ores of copper. When weathered chalcopyrite loses it's metallic luster, turning a gray-green color. When acids are present the tarnish can develop a red to blue to purple iridescence.
Galena & Chalcopyrite
Huanzala Mine, Bolognesi, Peru
1.3" wide