Dims: 4.0" x 3.1" x 3.0"(10.2 x 7.9 x 7.6 cm)
Wt: 1 lb., 9.4 oz.(719 g)
Huaron Mine, Ancash, Peru
This particular specimen is composed of over 90% Sphalerite by weight. The crystals are large(almost 1" or 2.5 cm along an edge) and very well-formed, with a small amount of damage. They have an adamantine luster and a dark brown color that is only evident through damage; the crystals are barely translucent, even under a halogen light. The crystals have a tetrahedral form with corners that are truncated by triangular faces. Among the profusion of Sphalerites are the occasional pyrite cube and transparent quartz crystal. These are some of the largest, nicest Sphalerite crystals that I have seen from this locality.