Large Sphalerite Crystals with Dolomite
Very large crystals of Sphalerite on a crystal bed of pearly Dolomite crystals. This is a historic specimen. This specimen is in the collection of the Smithsonian Institution, and was donated by Washington A. Roebling. This specimen was displayed at the 2017 Tucson Gem and Mineral Show ®.
Treece, Cherokee Co., Kansas