Cool skeletal geometry for these Galena crystals from the famous Madan ore field, Bulgaria. It displays stacked and aligned Galena cubes overgrowing each other. Excellent parallel growth of cubes and elongated tetragonal prisms on different axes. They consecutively grow one atop another forming an amazing skeletal structure. The crystals are lustrous. On the faces are seen gas bubble deformations.  Black Sphalerite tetrahedrons grow above. Small Quartz crystals add a nice accent. It displays attractively all over 360 degree. In excellent condition. On acrylic base.

Neat Galena!