Joseite

Joseite is a bismuth tellurium sulfide that is not approved by the IMA, as it may just be tellurium-rich Ikunolite. It forms trigonal, steel-gray, metallic crystals and anhedral masses. It is named for the type locality: San Jose, Minas Gerais, Brazil.

You can buy these rare metallic crystals online from The Arkenstone, www.iRocks.com to add fine mineral specimens to your collection.