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 Guélet ar C'hoat, Plouguin, Brest, Finistère, Brittany, France |
Data Identifiers |
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Mindat Occurrence Record ID: | 1027245 |
Long-form Identifier: | 1:3:1027245:7 |
GUID (UUID V4): | e9583432-e17c-4ad1-83a4-b7083cdc134c |
Nearest other occurrences of Biotite |
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10.3km (6.4 miles) | ⓘWrac'h island, Lilia, Plouguerneau, Brest, Finistère, Brittany, France |
13.9km (8.6 miles) | ⓘToullouarn quarry, Guissény, Brest, Finistère, Brittany, France |
16.4km (10.2 miles) | ⓘRocher du Crapaud beach alluvials, Lanildut, Brest, Finistère, Brittany, France |
19.2km (11.9 miles) | ⓘSaint-Egarec beach alluvials, Kerlouan, Brest, Finistère, Brittany, France |
21.0km (13.1 miles) | ⓘTrégana beach alluvials, Trégana, Locmaria-Plouzané, Brest, Finistère, Brittany, France |
21.1km (13.1 miles) | ⓘRuscumunoc beach alluvial deposits, Ruscumunoc, Plouarzel, Brest, Finistère, Brittany, France |
23.2km (14.4 miles) | ⓘBlancs Sablons beach alluvials, Le Conquet, Brest, Finistère, Brittany, France |
40.4km (25.1 miles) | ⓘPenn ar Roc'h - Porz an Ejen area, Ushant, Brest, Finistère, Brittany, France |
49.9km (31.0 miles) | ⓘPoul Morvan beach alluvials, Callot island, Carantec, Morlaix, Finistère, Brittany, France |
50.2km (31.2 miles) | ⓘPenn ar Waremm beach alluvials, Callot island, Carantec, Morlaix, Finistère, Brittany, France |
References |
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