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USA | |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| [var. Silver-bearing Galena] Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 |
| Mineralogical Record:16(3):171-201 |
A.Y. Mine, Iron Hill, Lake County, Colorado, USA