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
Håverstad 2 Feldspar Quarry, Håverstad, 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 Håverstad 2 Feldspar Quarry, Håverstad, Iveland, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:541122
Long-form Identifier:1:3:541122:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.1km (0.1 miles) ⓘHåverstad 01 Feldspar Quarry, Håverstad, Iveland, Agder, Norway
0.3km (0.2 miles) ⓘHåverstad 3 Feldspar Quarry, Håverstad, Iveland, Agder, Norway
0.3km (0.2 miles) ⓘHåverstad 8a (Heiegruva), Håverstad, Iveland, Agder, Norway
0.4km (0.3 miles) ⓘHåverstad 7 feldspar quarry, Håverstad, Iveland, Agder, Norway
0.5km (0.3 miles) ⓘHåverstad 4 Feldspar Quarry (Tuten 2), Håverstad, Iveland, Agder, Norway
0.6km (0.4 miles) ⓘHåverstad 4 Feldspar Quarry (Tuten 1), Håverstad, Iveland, Agder, Norway
0.9km (0.6 miles) ⓘMølland 13 quartz prospect, Mølland, Iveland, Agder, Norway
0.9km (0.6 miles) ⓘHåverstad 5 Feldspar Quarry, Håverstad, Iveland, Agder, Norway
0.9km (0.6 miles) ⓘMølland 12 feldspar quarry, Mølland, Iveland, Agder, Norway
1.1km (0.7 miles) ⓘMølland 07 feldspar quarry, 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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