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
Åvesland 19 Feldspar Quarry (Flotøygarden 2), Åvesland, Evje og Hornnes, 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:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Åvesland 19 Feldspar Quarry (Flotøygarden 2), Åvesland, Evje og Hornnes, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:1503902
Long-form Identifier:1:3:1503902:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.0km (0.6 miles) ⓘÅvesland 17 Feldspar Quarry (Tobakkstjørna), Åvesland, Evje og Hornnes, Agder, Norway
1.4km (0.8 miles) ⓘÅvesland 02 Feldspar Quarry (Lindalen), Åvesland, Evje og Hornnes, Agder, Norway
1.4km (0.9 miles) ⓘÅvesland 01 Feldspar Quarry (Møybaslia), Åvesland, Evje og Hornnes, Agder, Norway
1.5km (0.9 miles) ⓘÅvesland 03 Feldspar Prospects (Suvalia), Åvesland, Evje og Hornnes, Agder, Norway
1.8km (1.1 miles) ⓘÅvesland 08 Feldspar Quarry (Bjorhuskilen), Åvesland, Evje og Hornnes, Agder, Norway
2.0km (1.2 miles) ⓘÅvesland 04 Uranium Mine (Einerkilen 1), Åvesland, Evje og Hornnes, Agder, Norway
2.1km (1.3 miles) ⓘÅvesland 10 Feldspar Quarry (Smååsmyrane), Åvesland, Evje og Hornnes, Agder, Norway
2.3km (1.4 miles) ⓘÅvesland 13 Feldspar Quarry (Bråttjønn 1), Åvesland, Evje og Hornnes, Agder, Norway
3.1km (1.9 miles) ⓘStorøygardsvatnet Feldspar Quarry, Evje og Hornnes, Agder, Norway
3.6km (2.3 miles) ⓘUndeland 04 Feldspar Quarry, Undeland, Evje og Hornnes, Agder, Norway
References
(n.d.) Evje og Hornnes geomuseum Fennefoss Collection.
 
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