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USA | |
| Robert Stoufer collection--personal communication |
| 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. |
| Engineering & Mining Journal (1900) Vol 70 p 673 Rocks & Min.:62:302-308 & 75:309. 2008 New Mexico Mineral Symposium abstracts 2009 New Mexico Mineral Symposium abstracts |
| 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. |
| Rocks & Minerals 70:180-187 |
| Rocks & Minerals 75:311 2008 New Mexico Mineral Symposium abstracts |
| 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 2008 New Mexico Mineral Symposium abstracts |
| Rocks & Minerals 75:308 |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| Irving, J. D. (1905) Bulletin Vol. 260, Ore Deposits of the Ouray District, Colorado. US Geological Survey p.50-77. doi:10.3133/b260 U.S. Geological Survey Professional Paper 1753 |
| U.S. Geological Survey Professional Paper 1753 |
| Robert Stoufer collection |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| King, Vandall T., Robinson, George W. (1989) What's New in Minerals? - Sixteenth Annual Rochester Academy of Science Mineralogical Symposium. The Mineralogical Record, 20 (5) 387-399 Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182 Rocks & Min.:62:9 Rocks & Min.:64:140-141 Rocks & Min.:65:114-149 |
| Rocks & Min. (2009):84:414-425. Rocks & Min.:64:142-143. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| Robert Stoufer collection |
Daniel Bonanza Mine, Upper Uncompahgre River, Ouray Mining District, Ouray County, Colorado, USA