20hhgd.is ((GALENA, CHALCOPYRITE, QUARTZ, SPHALERITE)), $75 MINIMUM BID, Septemvri Mine, Madan ore field, Smolyan Province, Bulgaria, 9 x 5.5 x 5.5 cm, Cabinet, | |
Large cubic Galena with octahedral slightly modified corners. Large matte lustrous Chalcopyrite. Minor Sphalerite. ex Glenn Davidson collection. |