Cerrusite

Multiple hexagonal crystals up to 1.0cm are scattered across the display face. The surface contour has good depth adding to the aesthetics of the piece. This specimen is from Swat Valley, Khyber Pakhtunkhwa, Pakistan.

Great combination of these two native elements. As seen in the photos, the silver is well crystallized.

Amazing group of interwoven copper crystals from The Centennial Mine #2, Houghton County, Michigan. Displays well from all sides.

Beautiful transparent blue to mauve color cubes up 2.0 cm on edge. Crystal edges are bevelled, (I believe the modified cubes are correctly described as tetra hexahedrons). Scattered pyrite is visible in the crevices around the perimeter of the specimen. The specimen is from the Jamina Mine, Corrales, Berbes – Caravia, Austurias, Spain.