Dims: 2.4" x 1.7" x 1.5"(6.1 x 4.3 x 3.8 cm)
Wt: 3.39 oz. (96.2 g)
Cerro de Pasco, Peru
There are at least 12 colorful Enargite crystals on the quartzite host rock of this specimen. All show good orthorombic prismatic form with pedion terminations, and only a few that are at the specimen's edge show any damage. The largest of these crystals has a length of only 0.2" (5 mm), but its diameter measures 0.5" (1.3 cm); it rests at an angle to the specimen's base and is partially obscured due to intergrowth. All are opaque, and their gray-black coloration and nearly adamantine submetallic luster are almost completely obscured by a thin layer of what I believe is bornite. This thin layer of material has a metallic luster and shows hints of beautiful violet, gold, and blue coloration. The quartzite base rock on which the Enargites rest is a gray-white in coloration and contains small hollows that are lined with tiny, transparent quartz crystals.