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
Kurula, Ylivieska, North Ostrobothnia, Finland


Locality type:Deposit
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 Kurula, Ylivieska, North Ostrobothnia, Finland
Data Identifiers
Mindat Occurrence Record ID:1587445
Long-form Identifier:1:3:1587445:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
13.4km (8.3 miles) ⓘRauhala Deposit, Ylivieska, North Ostrobothnia, Finland
15.2km (9.4 miles) ⓘHuhta deposit, Kalajoki, North Ostrobothnia, Finland
15.6km (9.7 miles) ⓘJouhineva, Rautio, Kalajoki, North Ostrobothnia, Finland
21.5km (13.4 miles) ⓘVesiperä, Haapavesi, North Ostrobothnia, Finland
37.3km (23.2 miles) ⓘHirvikangas, Kalajoki, North Ostrobothnia, Finland
49.5km (30.8 miles) ⓘLaivakangas-N (Näädänmaa; Näädänmalmi), Raahe, North Ostrobothnia, Finland
49.9km (31.0 miles) ⓘKopsa, Haapajärvi, North Ostrobothnia, Finland
58.6km (36.4 miles) ⓘKoivusaarenneva, Kälviä, Kokkola, Central Ostrobothnia, Finland
References
Hector, Simon; Patten, Clifford G.C.; Kolb, Jochen; de Araujo Silva, Andressa; Walter, Benjamin F.; Molnár, Ferenc (2023) Orogenic Au deposits with atypical metal association (Cu, Co, Ni): Insights from the Pohjanmaa Belt, western Finland. Ore Geology Reviews, 154. doi:10.1016/j.oregeorev.2023.105326
 
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