Copper from selected localities.
USA | |
| U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Minerals of New Mexico 3rd ed. | |
Frank Karasti | |
U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
General Jerry Boyle, Virginia District, Lordsburg, Lordsburg Mining District, Pyramid Mountains, Hidalgo County, New Mexico, USA