Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Biotite from
La Croix Saint Julien (Le Clap), La Croix Saint Julien, Fontrieu, Castres, Tarn, Occitanie, France


Locality type:Pegmatite Field
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 La Croix Saint Julien (Le Clap), La Croix Saint Julien, Fontrieu, Castres, Tarn, Occitanie, France
Data Identifiers
Mindat Occurrence Record ID:1637230
Long-form Identifier:1:3:1637230:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
37.1km (23.1 miles) ⓘOrb river alluvial deposits, Tarassac, Mons, Béziers, Hérault, Occitanie, France
37.4km (23.2 miles) ⓘSalsigne mine, Salsigne, Carcassonne, Aude, Occitanie, France
82.1km (51.0 miles) ⓘLa Pierre Plantée pass, Mas Aubert, Trèves, Le Vigan, Gard, Occitanie, France
99.4km (61.7 miles) ⓘAnsignan charnockite intrusion, Feilluns (Felluns), Prades, Pyrénées-Orientales, Occitanie, France
References
 
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