| Locality type: | Point |
| 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 Penchâteau Point, Le Pouliguen, Saint-Nazaire, Loire-Atlantique, Pays de la Loire, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1105499 |
| Long-form Identifier: | 1:3:1105499:1 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 4.4km (2.7 miles) | ⓘLa Dilane, Batz-sur-Mer, Saint-Nazaire, Loire-Atlantique, Pays de la Loire, France |
| 8.2km (5.1 miles) | ⓘSainte-Marguerite, Pornichet, Saint-Nazaire, Loire-Atlantique, Pays de la Loire, France |
| 10.6km (6.6 miles) | ⓘLe Croisic Point, Le Croisic, Saint-Nazaire, Loire-Atlantique, Pays de la Loire, France |
| 14.3km (8.9 miles) | ⓘVille-ès-Martin, Saint-Nazaire, Saint-Nazaire, Loire-Atlantique, Pays de la Loire, France |
| 21.1km (13.1 miles) | ⓘPointe du Bile beach alluvial deposits, Penestin, Vannes, Morbihan, Brittany, France |
| 30.7km (19.1 miles) | ⓘCromenac'h beach alluvials (Cromenac'h West), Ambon, Vannes, Morbihan, Brittany, France |
| 37.6km (23.4 miles) | ⓘTrévenaste beach alluvials, Sarzeau, Vannes, Morbihan, Brittany, France |
| 63.3km (39.3 miles) | ⓘParc Grillaud, Chantenay, Nantes, Nantes, Loire-Atlantique, Pays de la Loire, France |
| 63.5km (39.5 miles) | ⓘMiséri (Miséry) quarry, Chantenay, Nantes, Nantes, Loire-Atlantique, Pays de la Loire, France |
| 87.8km (54.6 miles) | ⓘSpernec Point, Primiture, Groix, Lorient, Morbihan, Brittany, France |
| References |
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