Locality: Krushev Dol Mine (450 m level), Madan ore field, Smolyan Oblast, Bulgaria
Size: 44 mm x 36 mm x 27 mm (1.7 in. x 1.4 in. x 1.1 in.)
Weight: 41 g (1.43 oz.)
White quartz crystals to 36 mm with globular aggregates of white calcite, most of it covered in a thin layer of a dark green chlorite mineral, perhaps clinochlore(?)
The exposed faces of the quartz are naturally etched and of a rough texture.