Superb specimen of twinned Sphalerite crystals decorated with small Pyrite incrustations from the famous Trepca, Kosovo. It displays black Sphalerites crystals with strong luster, complex structure and marvelous twinning. The main 30 mm Sphalerite crystal forms a superb focal point. Above are seen yellow Pyrite crystals. In very good condition – some small nicks.

First grade Sphalerite!