| Locality type: | Alluvials |
| 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 Loire river alluvial deposits, Gien, Montargis, Loiret, Centre-Val de Loire, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 407691 |
| Long-form Identifier: | 1:3:407691:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 99.9km (62.1 miles) | ⓘNeuchaise pegmatite, Empury, Château-Chinon, Nièvre, Bourgogne-Franche-Comté, France |
| References |
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Loire river alluvial deposits, Gien, Montargis, Loiret, Centre-Val de Loire, France