Superb specimen of skeletal Galena crystals decorated with Sphalerite 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 another forming amazing terraced structure. The faces are matt lustrous. Black Sphalerite tetrahedral crystals are seen too. In very good condition – some contacts.

Cool piece from this closed mine – the only one that makes these structures!