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Biotite from
Porphyritic syenite outcrops, Lake Mykle, Kongsberg, Buskerud, Norway


Locality type:Outcrop
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 Porphyritic syenite outcrops, Lake Mykle, Kongsberg, Buskerud, Norway
Data Identifiers
Mindat Occurrence Record ID:313300
Long-form Identifier:1:3:313300:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.9km (1.8 miles) ⓘRomsdalen, Siljan, Telemark, Norway
3.1km (1.9 miles) ⓘRauberen, Lake Mykle, Kongsberg, Buskerud, Norway
12.9km (8.0 miles) ⓘBødtkeren Mine, Skien, Telemark, Norway
15.8km (9.8 miles) ⓘSteinsholtseter, Lardal, Larvik Commune, Vestfold, Norway
20.8km (12.9 miles) ⓘHoltehædde, Hedrum, Larvik Commune, Vestfold, Norway
25.5km (15.8 miles) ⓘVerlorne Sohn Mine, Kongsberg, Buskerud, Norway
27.6km (17.2 miles) ⓘBuer, Bjørkedalen, Porsgrunn, Telemark, Norway
27.7km (17.2 miles) ⓘHydro Quarry, Nome, Telemark, Norway
28.2km (17.5 miles) ⓘTufte Quarry, Søve Mines, Nome, Telemark, Norway
28.3km (17.6 miles) ⓘVibeto Farm, Nome, Telemark, Norway
References
Andersen, Tom, Frei, Robert, Sørensen, Henning, Westphal, Niels Langanger (2004) Porphyritic syenite at Lake Mykle, the Oslo Rift - a possible derivation of larvikite. Norges Geologiske Undersøkelse Bulletin 442, 23-28
 
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