Chalcocite Sterling Silver Pendant

Chalcocite, a copper sulfide, is an important ore mineral.  This chalcocite gemstone has many wonderful minerals swirled throughout, including turquoise, malachite and cuprite, the red color you see that is so beautiful.  Chalcocite has a metallic luster and a hardness of 2.5 to 3.  This particular chalcocite comes from Bisbee, Arizona.