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
Frikstad 02 Feldspar Quarry (Litjern), Frikstad, 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 Frikstad 02 Feldspar Quarry (Litjern), Frikstad, Iveland, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:494057
Long-form Identifier:1:3:494057:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.1km (0.1 miles) ⓘFrikstad 30 Feldspar Quarry, Frikstad, Iveland, Agder, Norway
0.2km (0.1 miles) ⓘFrikstad 31 Feldspar Prospect, Frikstad, Iveland, Agder, Norway
1.0km (0.6 miles) ⓘFrikstad 16 Feldspar Quarry, Frikstad, Iveland, Agder, Norway
1.0km (0.7 miles) ⓘFrikstad 01 Feldspar Quarry, Frikstad, Iveland, Agder, Norway
1.1km (0.7 miles) ⓘLi 04 Feldspar Quarry (Liheia), Li, Evje og Hornnes, Agder, Norway
1.1km (0.7 miles) ⓘFrikstad 15 Feldspar Quarry (Synken), Frikstad, Iveland, Agder, Norway
1.2km (0.7 miles) ⓘLi 06 Feldspar Quarry, Li, Evje og Hornnes, Agder, Norway
1.3km (0.8 miles) ⓘFrikstad 05 Feldspar Quarry, Frikstad, Iveland, Agder, Norway
1.4km (0.9 miles) ⓘFrikstad 04 Feldspar Quarry (Dauren), Frikstad, Iveland, Agder, Norway
1.5km (0.9 miles) ⓘFrikstad 03 Feldspar Quarry (Tuftane), Frikstad, Iveland, Agder, Norway
References
Larsen, Alf Olav, Erambert, Muriel (2007) Lepidolite from the Litjern pegmatite, Iveland. Norsk Bergverksmuseum Skrift, 35. 21-24
 
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