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Biotite from
Madec Quarry, La Clarté, Perros-Guirec, Lannion, Côtes-d'Armor, Brittany, France


Locality type:Quarry
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Madec Quarry, La Clarté, Perros-Guirec, Lannion, Côtes-d'Armor, Brittany, France
Data Identifiers
Mindat Occurrence Record ID:201287
Long-form Identifier:1:3:201287:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.0km (0.6 miles) ⓘB.G.P. Granite quarry, La Clarté, Perros-Guirec, Lannion, Côtes-d'Armor, Brittany, France
1.4km (0.9 miles) ⓘRebillon quarries, La Clarté, Perros-Guirec, Lannion, Côtes-d'Armor, Brittany, France
3.4km (2.1 miles) ⓘCoz Porz beach, Trégastel, Lannion, Côtes-d'Armor, Brittany, France
34.5km (21.5 miles) ⓘIle Verte, Carantec, Morlaix, Finistère, Brittany, France
35.6km (22.1 miles) ⓘPenn ar Waremm beach alluvials, Callot island, Carantec, Morlaix, Finistère, Brittany, France
36.0km (22.3 miles) ⓘPoul Morvan beach alluvials, Callot island, Carantec, Morlaix, Finistère, Brittany, France
54.2km (33.7 miles) ⓘLe Gouffre, Huelgoat, Châteaulin, Finistère, Brittany, France
56.6km (35.2 miles) ⓘKerbizien, Poullaouen, Châteaulin, Finistère, Brittany, France
57.1km (35.5 miles) ⓘGwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France
69.8km (43.3 miles) ⓘSaint-Egarec beach alluvials, Kerlouan, Brest, Finistère, Brittany, France
References
Pierrot, Roland; Chauris, Louis; Laforêt, Claude (1975) Inventaire minéralogique de la France - Côtes-du-Nord (22) - Inventaire minéralogique de la France No. 5. Editions du BRGM.pp.174-179
 
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