| Locality type: | Lode |
| Classification |
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| Species: | Albite var: Oligoclase |
| Formula: | (Na,Ca)[Al(Si,Al)Si2O8] |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Oligoclase data |
| Locality Data: | Click here to view Dike Lode, Keystone Mining District, Pennington County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 837896 |
| Long-form Identifier: | 1:3:837896:5 |
| GUID (UUID V4): | 1a768255-bfea-48c2-83a1-5446a19e4ce7 |
| Nearest other occurrences of Oligoclase |
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| 12.4km (7.7 miles) | ⓘHofert Arcade (Victory No. 1 Prospect), Custer Mining District, Custer County, South Dakota, USA |
| 22.6km (14.0 miles) | ⓘSilver Dollar Mine, Custer Mining District, Custer County, South Dakota, USA |
| 24.5km (15.2 miles) | ⓘRuby Reef Claims (Ruby Reef; Ruby Reef No. 1), Custer Mining District, Custer County, South Dakota, USA |
| 25.3km (15.7 miles) | ⓘJack Rabbit Mine, Custer Mining District, Custer County, South Dakota, USA |
| 25.8km (16.0 miles) | ⓘAnn Mine (Gladys Wells Mine; Gladys Nells Mine on the Map), Custer Mining District, Custer County, South Dakota, USA |
| 76.8km (47.8 miles) | ⓘRough and Ready mine, Tinton Pegmatite Mining District, Lawrence County, South Dakota, USA |
| 77.4km (48.1 miles) | ⓘGiant-Volney mine, Tinton Pegmatite Mining District, Lawrence County, South Dakota, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (volume) | | ................................ 50 History of mining............................................................................ 54 Condition of the mining industry.................................................................. 56 Nespelem (Moses) district............................................. ............................... 58 Production and mining conditions. ................................. 59...Metalliferous deposits Continued. Nespelem (Moses) district Continued. Mines and prospects Continued. Replacement |  | | Report (volume) | | _______-_--_______________-_-___-_____-Chouteau County, _________________ _____________-________ Origin...Map of the Yogo sapphire deposit, Judith Basin County, Mont._-----.-.-------.-_--------------------_--...sapphire deposit and placer claims of the American Gem Mining Syndicate. _____ 10. Coarsely crystalline corundum-bearing...deposits of the region. The sapphires in the Yogo dike are interpreted as a product of direct crystallization...explored and partly developed by prospectors and mining companies, and by the United States Bureau of Mines |
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