Tetrahedrite and Chalcopyrite with Sphalerite

Item Description

A large, very rich specimen of sharp, modified Tetrahedrites from Peru! These crystals, often intergrown or sprinkled with showy brassy Chalcopyrite, measure to .9 cm along the edge. The Tetrahedrites have superb luster and have fascinating modifications on the faces and edges. All rest on massive Sphalerite, and there are several large, intergrown Sphalerite crystals, as well. As to be expected, there is a little bit of outlying damage on the larger Spalerites, but the ones towards the center are in excellent condition. For a silvery-black mineral, this is very showy and aesthetic