Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Biotite from
Birkeland, Iveland, Agder, Norway


Locality type:Farm
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:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Birkeland, Iveland, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:968999
Long-form Identifier:1:3:968999:2
GUID (UUID V4):0
Localities for Biotite in this Region
Birkeland 01 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
Birkeland 02 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
Birkeland 03 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
Birkeland 04 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
Birkeland 05 Feldspar Quarries, Birkeland, Iveland, Agder, Norway
Nearest other occurrences of Biotite
0.1km (0.1 miles) ⓘBirkeland 01 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
0.2km (0.1 miles) ⓘKåbuland 04 Feldspar Quarry, Kåbuland, Iveland, Agder, Norway
0.3km (0.2 miles) ⓘBirkeland 05 Feldspar Quarries, Birkeland, Iveland, Agder, Norway
0.3km (0.2 miles) ⓘBirkeland 02 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
0.4km (0.2 miles) ⓘBirkeland 03 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
0.5km (0.3 miles) ⓘBirkeland 04 Feldspar Quarry, Birkeland, Iveland, Agder, Norway
0.6km (0.4 miles) ⓘKatterås 1 Feldspar Quarry, Katterås, Vegusdal, Birkenes, Agder, Norway
0.6km (0.4 miles) ⓘKatterås 2 Feldspar Quarry, Katterås, Vegusdal, Birkenes, Agder, Norway
0.6km (0.4 miles) ⓘKatterås 4 Feldspar Quarry, Katterås, Vegusdal, Birkenes, Agder, Norway
0.8km (0.5 miles) ⓘFrikstad 08 Feldspar Quarry, Frikstad, Iveland, Agder, Norway
References
Knut Edvard Larsen collection # 1907 (Ex-Astrid Haugen collection)
 
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