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
Vinsa, Rovaniemi, Lapland, Finland


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 Vinsa, Rovaniemi, Lapland, Finland
Data Identifiers
Mindat Occurrence Record ID:847112
Long-form Identifier:1:3:847112:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
8.8km (5.5 miles) ⓘPetäjävaara (Rosvohotu), Rovaniemi, Lapland, Finland
9.3km (5.8 miles) ⓘPukinselkä, Tervola, Lapland, Finland
21.8km (13.5 miles) ⓘKivimaa, Tervola, Lapland, Finland
27.4km (17.0 miles) ⓘRompas, Ylitornio, Lapland, Finland
41.8km (26.0 miles) ⓘKilvenjärvi Offset Sulfide-PGE Deposit, Portimo complex, Lapland, Finland
46.8km (29.1 miles) ⓘKivilompolo, Ylitornio, Lapland, Finland
70.3km (43.7 miles) ⓘKylmäkangas, Kuivaniemi, Ii, North Ostrobothnia, Finland
70.4km (43.8 miles) ⓘSääskilampi, Ranua, Lapland, Finland
71.5km (44.4 miles) ⓘKompsa, Kuivaniemi, Ii, North Ostrobothnia, Finland
72.5km (45.0 miles) ⓘKarahkalehto (Karahka), Kuivaniemi, Ii, North Ostrobothnia, Finland
References
Eilu, Pasi (2003) Exploration for orogenic gold deposits. Fennoscandian Exploration and Mining. Rovaniemi.
 
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