| Locality type: | Mine |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Number Twenty Copper Mine, Mineral Bluff, Fannin County, Georgia, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1025017 |
| Long-form Identifier: | 1:3:1025017:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 2.4km (1.5 miles) | ⓘPolk County Mine (Mary-Polk County ore body; Tennessee Copper Company; Old Polk County; Cities Service Company), Polk County, Tennessee, USA |
| 2.6km (1.6 miles) | ⓘCalloway Mine, Polk County, Tennessee, USA |
| 3.1km (1.9 miles) | ⓘCherokee Mine (School property; Old Tennessee Mine), Copperhill, Polk County, Tennessee, USA |
| 4.3km (2.7 miles) | ⓘBoyd Mine (Culchote vein), Ducktown, Polk County, Tennessee, USA |
| 5.1km (3.2 miles) | ⓘCopperhill Mine (Eureka Mine; Isabella Mine), Copperhill, Polk County, Tennessee, USA |
| 13.4km (8.3 miles) | ⓘMount Pisgah prospect (Higdon prospect), Pisgah Mountain, Fannin County, Georgia, USA |
| 61.7km (38.3 miles) | ⓘYahoola Mine, Dahlonega, Lumpkin County, Georgia, USA |
| 64.9km (40.3 miles) | ⓘReynolds Mine, Marblehill, Pickens County, Georgia, USA |
| 65.9km (40.9 miles) | ⓘChestatee Mine, Dahlonega, Lumpkin County, Georgia, USA |
| 66.3km (41.2 miles) | ⓘBozeman Mine (Jones Mine), Tate, Pickens County, Georgia, USA |
| References |
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