Chalcopyrite, Quartz & Sphalerite
Locality: Borieva, Madan, Rhodope Mts., Bulgaria
Size: 9.0 x 8.0 x 4.0 cm
Rhodochrosite Blades with Calcite
Locality:Madan Ore Field, Rhodope Mountains, Smolyan Oblast, Bulgaria
Size:20.3 x 15.2 x 12.7 cm