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Biotite from
Lavilatte, Largentière, Ardèche, Auvergne-Rhône-Alpes, France

Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
References
References:Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner (Guides Horay). Pierre Horay (Ed.), 224 pp.
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Lavilatte, Largentière, Ardèche, Auvergne-Rhône-Alpes, France
Nearest other occurrences of Biotite
35.6km (22.1 miles) Mont Denise, Espaly-Saint-Marcel, Le Puy-en-Velay, Haute-Loire, Auvergne-Rhône-Alpes, France
53.8km (33.4 miles) Chardas, Allègre, Haute-Loire, Auvergne-Rhône-Alpes, France
66.9km (41.6 miles) Feneyrolles river alluvials, Feneyrolles, Saint-Privat-du-Dragon, Lavoûte-Chilhac, Haute-Loire, Auvergne-Rhône-Alpes, France
67.2km (41.7 miles) La Rode river alluvials, Faucon, Saint-Ilpize, Lavoûte-Chilhac, Haute-Loire, Auvergne-Rhône-Alpes, France
67.2km (41.7 miles) Grenier river alluvials, Grenier, Saint-Ilpize, Lavoûte-Chilhac, Haute-Loire, Auvergne-Rhône-Alpes, France
68.1km (42.3 miles) Bouchassou river alluvials, Ribeyre, Saint-Ilpize, Lavoûte-Chilhac, Haute-Loire, Auvergne-Rhône-Alpes, France
69.0km (42.9 miles) Bartaillat river alluvials, Tapon, Vieille-Brioude, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France
70.0km (43.5 miles) La Borie river alluvials, Champlong, Vieille-Brioude, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France
70.7km (44.0 miles) Cherlet river alluvials, Vieille-Brioude, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France
70.8km (44.0 miles) Dintillat river alluvials, Vieille-Brioude, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France
 
Mineral and/or Locality  
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