Magnetite from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Minerals of Colorado (1997) Eckel, E. B. |
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Minerals of Colorado (1997) Eckel, E. B. |