|
USA | |
- Jamestown Mining District
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
- Central City Mining District (Central Mining District)
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| The Oxidized Zinc Ores of Leadville Colorado, G. F. Loughlin, 1918 |
| The Oxidized Zinc Ores of Leadville Colorado, G. F. Loughlin, 1918 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| The Oxidized Zinc Ores of Leadville Colorado, G. F. Loughlin, 1918 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| Rocks & Min.: 65:61. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
- Horseshoe Basin Mining District
| James A. Bauer Collection |
| Rocks & Minerals 81:356-361 |
Sherman Mine, Upper Iowa Gulch, Lake County, Colorado, USA