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Biotite from
Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway


Locality type:Pegmatite
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 Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:226619
Long-form Identifier:1:3:226619:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.7km (0.5 miles) ⓘHøydalen, Tørdal, Drangedal, Telemark, Norway
2.8km (1.8 miles) ⓘKleppe Quarry, Tørdal, Drangedal, Telemark, Norway
3.4km (2.1 miles) ⓘMjeltedalen pegmatite, Tørdal, Drangedal, Telemark, Norway
13.2km (8.2 miles) ⓘVeneli Iron Prospect, Nissedal, Telemark, Norway
13.7km (8.5 miles) ⓘSøftestad Iron Mines, Søftestad, Nissedal, Telemark, Norway
31.3km (19.5 miles) ⓘHolla, Nome, Telemark, Norway
32.0km (19.9 miles) ⓘMorka, Gjerstad, Agder, Norway
32.2km (20.0 miles) ⓘTufte Quarry, Søve Mines, Nome, Telemark, Norway
32.3km (20.1 miles) ⓘVibeto Farm, Nome, Telemark, Norway
32.5km (20.2 miles) ⓘHydro Quarry, Nome, Telemark, Norway
References
Raade, Gunnar, Kristiansen, Roy (2000) Mineralogy and geochemistry of the Heftetjern granite pegmatite, Tørdal: a progress report. Norsk Bergverksmuseum Skrift, 17. 19-25
 
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