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Biotite from
Opprebais quarry, Opprebais, Incourt, Walloon Brabant, Wallonia, Belgium


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:reportedly formed from detritic glauconite (de Magnée, 1977)
Habit:grains
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz3
Albite1
Anatase1
Tourmaline1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Opprebais quarry, Opprebais, Incourt, Walloon Brabant, Wallonia, Belgium
Data Identifiers
Mindat Occurrence Record ID:714930
Long-form Identifier:1:3:714930:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
45.8km (28.5 miles) ⓘPorphyry quarries, Quenast, Rebecq, Walloon Brabant, Wallonia, Belgium
78.2km (48.6 miles) ⓘLahonry quarry, Couvin, Namur, Wallonia, Belgium
84.7km (52.6 miles) ⓘRegné, Bihain, Vielsalm, Luxembourg, Wallonia, Belgium
86.6km (53.8 miles) ⓘRoche Falîche, Bihain, Vielsalm, Luxembourg, Wallonia, Belgium
90.8km (56.4 miles) ⓘArdennite-quartz veins, Salmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium
91.8km (57.1 miles) ⓘLorette chapel, Moircy, Libramont-Chevigny, Luxembourg, Wallonia, Belgium
92.0km (57.1 miles) ⓘSéviscourt, Libramont-Chevigny, Luxembourg, Wallonia, Belgium
95.1km (59.1 miles) ⓘLa Flèche quarry, Bertrix, Luxembourg, Wallonia, Belgium
95.8km (59.5 miles) ⓘRenaumont, Sainte-Marie-Chevigny, Libramont-Chevigny, Luxembourg, Wallonia, Belgium
96.0km (59.7 miles) ⓘHerzogenhügel, Ternell, Eupen, Liège, Wallonia, Belgium
References
de Magnée, I. (1977) Glauconie transformée en biotite dans les phyllades et quartzophyllades du Massif cambro-ordovicien du Brabant (Note préliminaire). Bulletin de la Société belge de Géologie, 86, 25.
Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique (2nd ed.) Muséum des Sciences Naturelles, Bruxelles.
 
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