A superb specimen of skeletal galena decorated with chalcopyrite from 9th Septemvri mine, Madan ore field, Bulgaria. Very attractive and geometrical arrangement of stacked and aligned galena overgrowing each other. Excellent parallel growth of cubes and elongated tetragonal prisms on different axes. They grow one atop other forming amazing terraced structures. The faces are matt lustrous. Nice decoration is yellow chalcopyrite crystals growing above. In excellent condition – some small nicks and contacts.

Choice specimen from this closed mine – the only one that makes these structures!