Description
This beautiful combination piece features several brassy, multifaced Chalcopyrite crystals with tetrahedral basic shape, accompanied by jet-black, relatively large and highly lustrous Sphalerite crystals. The Chalcopyrites here are sharp edged with fine metallic sheen and a few of them are nicely twinned as well. Choice material with only minor imperfections, mined in the heyday of this great mine in the late1970s.