An excellent specimen of Sphalerite overgrowth by chalcopyrite– Size: 52 x 38 x35 mm Weight: 59 grams – A specimen that you receive may look slightly different in color from the one on the photographs. Because of the lights used to make the photos. – Thank you for visiting our shop! If you didn’t find what you’re looking for or you have any questions. Please don’t hesitate to contact me. I’d be glad to help you.