Chalcopyrite from selected localities.
USA | |
| U.S.G.S. Bulletin 255 |
Mineralogical Record (1997) 28:3-49 | |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Mineralogical Record (1997) 28:3-49 | |
U.S.G.S. Bulletin 255 |
Rosiclare, Hardin County, Illinois, USA