| 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 Lexington Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 179017 |
| Long-form Identifier: | 1:3:179017:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 1.1km (0.7 miles) | ⓘSteward Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| 1.6km (1.0 miles) | ⓘGem Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| 4.5km (2.8 miles) | ⓘSarsfield Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| 4.5km (2.8 miles) | ⓘNorthwestern Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| 4.6km (2.8 miles) | ⓘMontgomery Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| 4.7km (2.9 miles) | ⓘContinental Pit, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| 5.1km (3.1 miles) | ⓘAltona Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA |
| 22.6km (14.1 miles) | ⓘPohndorf Mine, Toll Mountain, Boulder Batholith, Jefferson County, Montana, USA |
| 39.1km (24.3 miles) | ⓘFree Enterprise Mine (Silver Bell), Boulder, Boulder Mining District, Boulder Batholith, Jefferson County, Montana, USA |
| 42.0km (26.1 miles) | ⓘGolden Sunlight Mine, Whitehall Mining District (Cardwell Mining District), Jefferson County, Montana, USA |
| References |
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