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
Åmdal 2 Feldspar Quarry, Åmdal (Omdal), Iveland, 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 Åmdal 2 Feldspar Quarry, Åmdal (Omdal), Iveland, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:700275
Long-form Identifier:1:3:700275:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.3km (0.2 miles) ⓘLandås 07h Feldspar Prospect (Beinmyr 8), Beinmyr Feldspar Quarries (Landås 07 Quarries), Landås, Iveland, Agder, Norway
0.3km (0.2 miles) ⓘÅmdal 1 Feldspar Quarry, Åmdal (Omdal), Iveland, Agder, Norway
0.4km (0.2 miles) ⓘBeinmyr Feldspar Quarries (Landås 07 Quarries), Landås, Iveland, Agder, Norway
0.5km (0.3 miles) ⓘLandås 01 Feldspar Quarry, Landås, Iveland, Agder, Norway
1.0km (0.6 miles) ⓘStøledalen 01 Feldspar Quarry, Støledalen, Iveland, Agder, Norway
1.0km (0.7 miles) ⓘStøledalen 02 Feldspar Quarry, Støledalen, Iveland, Agder, Norway
1.2km (0.7 miles) ⓘLandås 05 Feldspar Quarry (Låndåstunnelen 1), Landås, Iveland, Agder, Norway
1.2km (0.8 miles) ⓘLandås 06 Feldspar Quarry (Landåstunnelen 2), Landås, Iveland, Agder, Norway
1.4km (0.9 miles) ⓘLandås 04 Feldspar Quarry, Landås, Iveland, Agder, Norway
1.4km (0.9 miles) ⓘMølland 10 Feldspar Quarry, Rostadheia, Mølland, 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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