| Locality type: | Outcrop |
| 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 Gneiss, Bryan Ranch area, Park County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 493734 |
| Long-form Identifier: | 1:3:493734:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 7.9km (4.9 miles) | ⓘPipe Springs Campground, Wilkerson Pass Area, Park County, Colorado, USA |
| 9.0km (5.6 miles) | ⓘRound Mountain Group, Tarryall Springs Mining District (Puma City), Park County, Colorado, USA |
| 19.8km (12.3 miles) | ⓘBalfour Mines, Elevenmile Canyon Area, Park County, Colorado, USA |
| 21.8km (13.6 miles) | ⓘMeyers Ranch, Guffey Mining District, Park County, Colorado, USA |
| 22.3km (13.9 miles) | ⓘBlack Cloud Mine, Teller County, Colorado, USA |
| 25.5km (15.8 miles) | ⓘBetty Mine (Lone Chimney Mine; Betty Lowe), Guffey Mining District, Park County, Colorado, USA |
| 28.4km (17.6 miles) | ⓘBaumer Pegmatite Prospect, Guffey Mining District, Park County, Colorado, USA |
| 29.5km (18.3 miles) | ⓘStar Girl Mine (Colorado Feldspar Company Mine), Micanite Mining District (Currant Creek Mining District), Colorado, USA |
| 29.6km (18.4 miles) | ⓘRosemont Mine (East Mine), Micanite Mining District (Currant Creek Mining District), Colorado, USA |
| 29.9km (18.6 miles) | ⓘClimax Mine (Mine No. 8 U.S. Mica Company; Climax Mica Mine), Micanite Mining District (Currant Creek Mining District), Colorado, USA |
| References |
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