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Biotite from
Långmarken, Sidensjö, Örnsköldsvik, Västernorrland County, Sweden


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 Långmarken, Sidensjö, Örnsköldsvik, Västernorrland County, Sweden
Data Identifiers
Mindat Occurrence Record ID:1807280
Long-form Identifier:1:3:1807280:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.3km (0.8 miles) ⓘOrrvik, Sidensjö, Örnsköldsvik, Västernorrland County, Sweden
4.3km (2.7 miles) ⓘStenbackberget, Sidensjö, Örnsköldsvik, Västernorrland County, Sweden
5.8km (3.6 miles) ⓘDyngselet, Sidensjö, Örnsköldsvik, Västernorrland County, Sweden
5.9km (3.7 miles) ⓘAnundsböle, Sidensjö, Örnsköldsvik, Västernorrland County, Sweden
7.4km (4.6 miles) ⓘHinnsjön, Sidensjö, Örnsköldsvik, Västernorrland County, Sweden
17.0km (10.6 miles) ⓘBergom, Själevad, Örnsköldsvik, Västernorrland County, Sweden
24.1km (15.0 miles) ⓘÄskja, Ullånger, Kramfors, Västernorrland County, Sweden
25.8km (16.0 miles) ⓘSkorped, Örnsköldsvik, Västernorrland County, Sweden
28.4km (17.6 miles) ⓘBräntlandet Pegmatite, Örnsköldsvik, Västernorrland County, Sweden
40.5km (25.2 miles) ⓘTjärned, Kramfors, Västernorrland County, Sweden
References
Lynch, Edward P.; Szentpéteri, Krisztián; Andersson, Joel B.H.; Kuusela, Janne; Sadeghi, Martiya; Bauer, Tobias E. (2025) Lithium-caesium-tantalum (LCT) pegmatite mineralization in the Paleoproterozoic central Fennoscandian Shield (Sweden and Finland): A review of geological characteristics and assessment of mineral system commonalities. Ore Geology Reviews, 184. 106739 doi:10.1016/j.oregeorev.2025.106739
 
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