Mineral: Galena, Sphalerite and Calcite (variety manganoan calcite)
Locality: Borieva Mine, Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria
Dimensions: 73 mm × 57 mm × 27 mm

Description: Group of galena cubes with a characteristic stepped architectural structure and metallic luster with black sphalerite and manganoan calcite Largest Crystal: 18 mm. Mass: 150 gr

All pictures, text, design © Forum FMF 2006-2025