5dbts ((KTENASITE, SPHALERITE, CHALCOPYRITE)), $35 MINIMUM BID, Commodore Mine, Creede, Mineral County, Colorado, 14 x 12 x 2.5 cm, Large Cabinet | |
Ktenasite, a copper zinc sulphate, is a blue micro coating on the Chalcopyrite crystals. There is also the dark lustrous Sphalerite crystals present. ex Dave Bunk specimen. |