#23 / SPHALERITE - Bolivia

Locality: Estano Horco Mine, Colavi Dist., Potosi Dept., Bolivia
Size: 4 x 3 x 2.8 cm.
A pair of large Sphalerite crystals with a coating of slightly irredescent Bornite, with Pyrite from a small limited find brought in by Brian Kosner around 2005. Kosner label included