| 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 Aegirine locality, Hortavær Complex, Leka, Trøndelag, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 670246 |
| Long-form Identifier: | 1:3:670246:5 |
| GUID (UUID V4): | fde65949-3a45-46f7-aa43-d7aaf2577743 |
| Nearest other occurrences of Biotite |
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| 44.3km (27.5 miles) | ⓘKattuglehaugen Granite Quarry, Sømna, Nordland, Norway |
| 60.0km (37.3 miles) | ⓘAndalshatten Molybdenum Prospect, Vevelstad, Nordland, Norway |
| 62.7km (39.0 miles) | ⓘForneshatten Molybdenum Prospect, Brønnøy, Nordland, Norway |
| 64.3km (40.0 miles) | ⓘHøyholm Granite Deposit, Vevelstad, Nordland, Norway |
| 67.6km (42.0 miles) | ⓘMålvika Tungsten Skarn Deposit, Tosenfjorden, Brønnøy, Nordland, Norway |
| 73.6km (45.7 miles) | ⓘLangkilen Zinc Prospects, Vevelstad, Nordland, Norway |
| 89.4km (55.5 miles) | ⓘStorgruben, Buøya, Alstahaug, Nordland, Norway |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | Bohemian Massif. The main carriers of fluorine are biotite and amphibole. The highest concentrations of fluorine...typical alkaline rocks containing soda-amphibole and aegirine. The chemical compositions of typical representatives...shdied. In non-alkaline types, those which contain biotite evidently contain more fluorine than thee which...rocks with the percentage of mafic constituents (biotite and amphiboles) ie distinot. In the cfuJeof alkaline...microgranites which are poor in amphibole and biotite, the F-content is ~ub8~tially lower than that iu |
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