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
Ivedal 1 Feldspar Prospect, Ivedal, Iveland, Agder, Norway


Locality type:Prospect
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 Ivedal 1 Feldspar Prospect, Ivedal, Iveland, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:541179
Long-form Identifier:1:3:541179:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.2km (0.7 miles) ⓘIvedal 3 feldspar quarry, Ivedal, Iveland, Agder, Norway
1.2km (0.7 miles) ⓘIvedal 2 Feldspar Quarry, Ivedal, Iveland, Agder, Norway
2.0km (1.2 miles) ⓘRossås 14 Feldspar Quarry, Rossås, Iveland, Agder, Norway
2.1km (1.3 miles) ⓘRossås 05 Feldspar Quarry, Rossås, Iveland, Agder, Norway
2.1km (1.3 miles) ⓘRossås 09 Feldspar Quarry (Feitedalen 3), Rossås, Iveland, Agder, Norway
2.2km (1.4 miles) ⓘTveit 05 Feldspar Quarry (Gumpen), Tveit, Iveland, Agder, Norway
2.2km (1.4 miles) ⓘRossås 02 Feldspar Quarry, Rossås, Iveland, Agder, Norway
2.3km (1.4 miles) ⓘFrøyså 05 Feldspar Quarry, Frøyså, Iveland, Agder, Norway
2.4km (1.5 miles) ⓘTveit 06 Feldspar Quarry (Hallvard Tveit's Quarry), Tveit, Iveland, Agder, Norway
2.4km (1.5 miles) ⓘRossås 04 Feldspar Quarry, Rossås, Iveland, Agder, Norway
References
Bjørlykke, Knut (1935) The mineral paragenesis and classification of the granite pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 14 (3-4). 211-311
 
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