Chalcopyrite from selected localities.
USA | |
| Pearl, Richard M. (1958), Colorado Gem Trails & Mineral Guide, Sage Books, Chicago, Illinois. |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |