Calcite on Sphalerite

A complete floater consisting of two pieces of breccia coated with Calcite and cemented together by Ruby Jack Sphalerites. To top it off gorgeous doubly terminated tiny amber gem Calcites coat a good portion. Very good. Ex Mike Wortham who purchased it (2011)  from Brian Stefanic , who self collected it.

Locality: Cumberland Mine, Drift 12-5-3, Carthage, Smith County Tennessee

Composition: calcium carbonate and zinc sulfide