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Biotite from
Søndrestjenn 1 (Skåremyr), Søndrestjenn, Birkenes, Agder, Norway


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
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Søndrestjenn 1 (Skåremyr), Søndrestjenn, Birkenes, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:1219047
Long-form Identifier:1:3:1219047:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.6km (0.4 miles) ⓘSøndrestjenn 4 (Skåranelia), Søndrestjenn, Birkenes, Agder, Norway
0.8km (0.5 miles) ⓘSøndrestjenn 5 (Herefossveien), Søndrestjenn, Birkenes, Agder, Norway
1.6km (1.0 miles) ⓘKolbrennerhytta, Birkenes, Agder, Norway
2.5km (1.6 miles) ⓘHoskulstjern, Froland, Agder, Norway
3.0km (1.9 miles) ⓘTolltanglia South, Froland, Agder, Norway
3.0km (1.9 miles) ⓘRevefjell 1, Revefjell, Froland, Agder, Norway
3.7km (2.3 miles) ⓘHellheia midtre quarry (Hellheia 1), Hellheia, Froland, Agder, Norway
3.9km (2.4 miles) ⓘHellheia nordre quarry (Hellheia 2), Hellheia, Froland, Agder, Norway
4.0km (2.5 miles) ⓘMiddle Lauvrak Quarry, Lauvrak, Froland, Agder, Norway
4.0km (2.5 miles) ⓘLauvrak, Froland, Agder, Norway
References
Ihlen P.M., Henderson I., Larsen, R.B., Lynum R. (2001): Potensielle ressurser av kvarts- og feltspatråstoffer på Sørlandet, I: Regional prøvetakning av utvalgte feltspatbrudd i Frolandsområdet. NGU Rapport 2001.044, 46 pp.
 
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