Pyromorphite from San Juan Mountains, USA
USA | |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
Rosemeyer, Tom (2010) Creede: The Last Wild West Silver Mining Camp in Colorado. Rocks & Minerals, 85 (5). 396-413 doi:10.1080/00357529.2010.494150 | |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
| Rocks & Minerals 82:368-380 |
| Rocks & Min.:63:275-277 & 65:59. |