A cool specimen of skeletal galena decorating attractively quartz plate with chalcopyrite from 9th Septemvri mine, Madan ore field, Bulgaria. Very neat 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 an amazing terraced structure. The faces are matt lustrous. Small yellow chalcopyrite crystals grow on the back side. In excellent condition – some small imperfections.

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