An attractive specimen displaying one big chalcopyrite crystal intergrowing with silver-metallic galena from the famous Madan ore field, Bulgaria. The galena penetrates in the chalcopyrite by very neat manner. They form an excellent formation. The chalcopyrite crystal of 28mm has a yellow color and a good shape. The galena cubes are matt lustrous, well shaped and they form neat skeletal formations. In very good condition – some small nicks.

Fascinating!