Dims: 3.2 x 2.1 x 1.1" (8.1 x 5.3 x 2.8 cm)
Wt: 7.8 oz. (223 g)
Huaron Mine, Ancash Department, Peru
A crust that is made up of scores of intergrown Sphalerite crystals makes up part of this small hand specimen. These crystals do not exceed 0.3" (8 mm) along any axis and are in good condition, showing damage only around the edge of the crust. Their heavy intergrowth along with intense twinning makes their cube-based forms difficult to ascertain, but they still show very well-defined edges and clean faces that possess a bright pearly luster. All have a very dark brown coloration and are essentially opaque. The Sphalerites are accompanied by several clusters of small, well-formed, colorless and transparent quartz crystals and rests on a layer of crystalline pyrite, which in turn rests on a layer of highly rounded and intergrown galena crystals.