Marvelous and unusual Sphalerite with skeletal structure and Chalcopyrite incrustations above. Black Sphalerite crystals with superb luster and complex, stepped faces that form attractive structure with two cavernous formation. It has excellent parallel striations. On the surface are grown rich yellow Chalcopyrites. They enrich nicely the display. Some very small Pyrites are grown on the Chalcopyrite. The specimen is complete all over – small contact areas. In excellent condition – some attachments.

Beautiful and neat!