Calcite on Sphalerite w. minor Chalcopyrite
Borieva Mine, Madan, Rhodope Mts.
Smolyan Oblast, Bulgaria
5 x 5 x 2.3 CM (miniature)
Exceptional bright luster and contrast on this esthetic specimen from the Madan area. The condition is excellent, this is clearly not a typical piece and displays very well. Black Sphalerite is not normally an eycatching mineral, this one is mirror bright and well composed, the calcite add a fine contrast.