Superb skeletal Galena covered by blue-green coating over small Quartz base from 9th Septemvri mine, Madan ore field, Bulgaria. Very attractive and geometrical arrangement of stacked and aligned Galena crystals overgrowing each other. Excellent parallel growth of cubes and elongated tetragonal prisms on different axes. They grow one atop another forming amazing terraced structure. The bright blue-green coating gives unusual appearance. On the Galena are seen very small dark royal blue unidentified crystals. Some small Quartz crystals enrich the display.  Some nicks and contacts.
Cool specimen from this closed mine – the only one that makes these structures!