Alunite from Saguache County, Colorado, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Minerals of Colorado (1997) Eckels, E. B. | |
Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |