Attractive skeletal Galena on Sphalerite base from 9th Septemvri mine, Madan ore field, Bulgaria. 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 terraced structure. The faces are matt lustrous. Black Sphalerite crystals are seen too. In very good condition – some small nicks and contacts.
Neat specimen from this closed mine – the only one that makes these structures!