20hhgd.is ((CHALCOPYRITE on SPHALERITE with DOLOMITE)), $15 MINIMUM BID, Joplin Field, Jasper Co., Missouri, 10 x 7 x 4 cm, Cabinet | |
Large specimen of Sphalerite with two cleaved edges. On the crystalized mound are crystals of Chalcopyrite. Minor associated Dolomite. ex Glenn Davidson collection |