| 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 Burlington - Iowa Group, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 493789 |
| Long-form Identifier: | 1:3:493789:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 2.4km (1.5 miles) | ⓘWaterloo Mine, Russell Gulch, Gilpin County, Colorado, USA |
| 4.2km (2.6 miles) | ⓘHudson Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 8.2km (5.1 miles) | ⓘAjax Mica Mine (Floyd Hill Mica Mine), Clear Creek Pegmatite Province, Clear Creek County, Colorado, USA |
| 8.5km (5.3 miles) | ⓘNye-Mathews mine (Wilma mine), Apex Mining District (Kingston Mining District; Pine Mining District), Gilpin County, Colorado, USA |
| 8.9km (5.5 miles) | ⓘMartha E. Adit, Jackson Mining District (Corral Mining District), Clear Creek County, Colorado, USA |
| 9.3km (5.8 miles) | ⓘBell of the West, Lamartine Mining District, Clear Creek County, Colorado, USA |
| 10.0km (6.2 miles) | ⓘGrover Mine (Grover pegmatite; Windsor), Clear Creek County, Colorado, USA |
| 10.4km (6.5 miles) | ⓘDevils Canyon, Clear Creek County, Colorado, USA |
| 10.9km (6.8 miles) | ⓘMurry Mine, Lawson Mining District, Clear Creek County, Colorado, USA |
| 13.2km (8.2 miles) | ⓘStrang pegmatite occurrence (S. B. Strang Ralston Creek pegmatite), Clear Creek Pegmatite Province, Jefferson County, Colorado, USA |
| References |
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