Kuramite, Pyrite, Quartz
Campbell Mine, Bisbee, Cochise County, Arizona, USA
Kuramite is an extremely rare copper tin sulfide species (part of the Stannite Group), only found in about a dozen world localities. The type locality is the Kockbulak Mine in Uzbekistan (it was named after the Kuramin (Qurama) Mountains where the type locality is found), but specimens are virtually non-existent. This piece is from the famous ...
© Brian Kosnar - Mineral Classics