This is an excellent sphalerite specimen with lustrous well formed crystals growing from a base of pure massive sphalerite and with patches of small brassy pyrite crystals with cubic, cubo-octahedral, and pyritohedral forms. Also has a couple small patches of clear needle quartz crystals. From Huaron, Peru. Measures 5 x 3.5 x 2 inches. Superb condition.
