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
Støledalen 01 Feldspar Quarry, Støledalen, 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 Støledalen 01 Feldspar Quarry, Støledalen, Iveland, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:700477
Long-form Identifier:1:3:700477:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.3km (0.2 miles) ⓘStøledalen 02 Feldspar Quarry, Støledalen, Iveland, Agder, Norway
0.7km (0.4 miles) ⓘÅmdal 1 Feldspar Quarry, Åmdal (Omdal), Iveland, Agder, Norway
0.9km (0.6 miles) ⓘLandås 01 Feldspar Quarry, Landås, Iveland, Agder, Norway
0.9km (0.6 miles) ⓘMølland 11 Feldspar Quarry, Rostadheia, Mølland, Iveland, Agder, Norway
1.0km (0.6 miles) ⓘMølland 10 Feldspar Quarry, Rostadheia, Mølland, Iveland, Agder, Norway
1.0km (0.6 miles) ⓘRostadheia, Mølland, Iveland, Agder, Norway
1.0km (0.6 miles) ⓘÅmdal 2 Feldspar Quarry, Åmdal (Omdal), Iveland, Agder, Norway
1.0km (0.6 miles) ⓘMølland 08 Feldspar Quarry (Blomberg Tunnel Mine), Rostadheia, Mølland, Iveland, Agder, Norway
1.0km (0.7 miles) ⓘMølland 09 Feldspar Quarry, Rostadheia, Mølland, Iveland, Agder, Norway
1.2km (0.7 miles) ⓘLandås 07h Feldspar Prospect (Beinmyr 8), Beinmyr Feldspar Quarries (Landås 07 Quarries), Landås, 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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