Sphalerite, Galena, Pyrite
Kokomo-Tenmile area, Summit County, Colorado, USA
4.8 x 4.6 x 2.6 cm
This particular piece is from my own personal collection, and is the best Sphalerite that I’ve seen from this area. The specimen actually once belonged to Warren Prosser the noted author and geologist who worked in the San Juan Mountains of Colorado. The piece plays host to dozens of sharp, fairly lustrous, attractive, ...
© Brian Kosnar - Mineral Classics