Chalcopyrite from selected localities.
USA | |
| O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 43): 43(4): 424; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 86. |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |