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USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 Rocks & Min.: 63: 366-384. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Jasun MacAvoy specimen |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Emmons, S. F., Becker, G. F. (1885) Statistics and Technology of the Precious Metals. Bureau of the Census. |
| 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. |
| Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 |
Cement Creek, Eureka Mining District, San Juan County, Colorado, USA