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Biotite from
Les Ardillats quarry, Les Ardillats, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes, 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
Comments:In lamprophyres.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Les Ardillats quarry, Les Ardillats, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes, France
Data Identifiers
Mindat Occurrence Record ID:312005
Long-form Identifier:1:3:312005:7
GUID (UUID V4):0
References
G. Demarcq, 1973, "Guides Géologiques Régionaux : Lyonnais, Vallée du Rhône" , p. 46, Masson.
 
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