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Biotite from
Cleo pegmatite, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada

Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Confirmation
Validity:Believed Valid
References
References:Bannatyne, B. B. (1985). Industrial minerals in rare-element pegmatites of Manitoba (Vol. 84, No. 1). Manitoba Energy and Mines, Geological Services.
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Cleo pegmatite, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
Nearest other occurrences of Biotite
0.7km (0.4 miles) GL-7 pegmatite, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
0.9km (0.5 miles) GL-8 pegmatite, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
1.0km (0.6 miles) GL12A pegmatite, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
1.0km (0.6 miles) Huron No. 1 (GL-11) pegmatite, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
1.2km (0.7 miles) Grace claim, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
1.3km (0.8 miles) Grace No. 2 claim (Beryl dike), Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
1.4km (0.9 miles) GL 1 pegmatite, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
1.4km (0.9 miles) Huron pegmatite, Whiteshell Park, Greer Lake, Lac-du-Bonnet area, Manitoba, Canada
6.8km (4.2 miles) Pine claim, Pointe du Bois, Manitoba, Canada
8.2km (5.1 miles) Birse Lake Occurrence (Rose), Birse Lake, Lac-du-Bonnet area, Manitoba, Canada
 
Mineral and/or Locality  
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