Sphalerite 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.; Econ Geol (1984) 79:439-447 | |
Minerals of Colorado (1997) E.B. Eckel | |
Minerals of Colorado (1997) E.B. Eckel | |
Collection of RJ Martin | |
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. |
Emperius Mine, Creede Mining District, Mineral County, Colorado, USA