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USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
- Fish Lake Valley Mining District
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology Am Min 64:3-4 pp 1026-1038 |
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
- Montezuma Mining District
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
- Red Mountain Mining District
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| [Opal-A var. Opal-AN] American Mineralogist 19:268-274 |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
| [Opal-AN var. Hyalite] (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |
| NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada |