Dims: 6.3" x 3.3" x 2.1" (16.0 x 8.4 x 5.3 cm)
Wt: 1 lb., 12.3 oz. (801 g)
One of our larger specimens, this Peruvian piece consists of dozens of Chalcopyrite crystals scattered over a quartz-covered base rock, along with as many pyrites and some sphalerite crystals. The Chalcopyrites have very good form and occur as rounded tetrahedrons with clean faces and edges, and very little damage. They reach maximum size of 0.3" (8 mm) along an edge, and have the obligatory deep golden coloration and metallic luster. The pyrite and sphalerite crystals are similarly sized and also in good condition. They rest on a bed of tiny, transparent quartz crystals that coat a base rock made up of all three sulfide minerals. There are a few small patches of mangano-calcite blades on the edge of the quartz crust. It is a classic Peruvian specimen, with lots of sparkling sulfide material.