A superb, specimen from a classic locality, Ex Harvard University , Dr L.C. Wyman and Doug Ervin collections. Perfect and sharp textbook form Sphalerite crystal 3.3 CM across is perched estheticly on matrix. Complete on all sides this has excellent display impact. Classic Tri-state specimen that turns a black mineral into a striking presentation.
An exceptional, well formed Sphalerite from a long gone classic locality. Big, textbook clustered crystals reach 3.6 CM and show elegant twinning. This is far better than most "good" specimens from Tri state, it is admittedly more expensive but a very good value for the price. While this is a "black, ugly" mineral the overall esthetics and luster on this one makes this an remarkable and desirable addition for any collection.