Dims: 1.5" x 1.4" x 1.1"(3.8 x 3.6 x 2.8 cm)
Wt: 1.98 oz. (56.1 g)
Cerro de Pasco, Peru
This Enargite specimen is one of the most exceptional for its size that I have seen. It consists of at least 5 orthorombic prismatic crystals with pedion terminations intermixed with a few pyrite formations on a bed of broken, intergrown Enargites. The specimen is in generally good condition, with damage limited mostly to larger crystals on the specimen's edge. The largest of these has a noticeably damaged termination, and measures 0.6 x 0.5 x 0.4" (1.5 x 1.3 x 1.0 cm). All of these crystals have a black color, an almost adamantine, submetallic luster, and are opaque. Most are coated with a thin crust of what appears to be bornite, as it is very colorful, with golden, violet, and blue hues. A few other crystals, however, have undergone almost complete pseudomorphing into pyrite, and have a bright metallic luster and a pale golden color. Two of these in particular continued to grow, forming elongated crystal faces and pyritohedral forms. It is a really interesting specimen to examine, as it appears that several stages of the pseudomorphing process are visible at once.