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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Muscovite from
Dragbacken, Ostrobothnia, Finland


Locality type:Pegmatite
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Dragbacken, Ostrobothnia, Finland
Data Identifiers
Mindat Occurrence Record ID:1807607
Long-form Identifier:1:3:1807607:1
GUID (UUID V4):0
Nearest other occurrences of Muscovite
6.1km (3.8 miles) ⓘJänislampi, Ostrobothnia, Finland
9.0km (5.6 miles) ⓘMatoneva, Kaustinen, Central Ostrobothnia, Finland
13.2km (8.2 miles) ⓘLeviäkangas, Kaustinen, Central Ostrobothnia, Finland
14.5km (9.0 miles) ⓘOutovesi, Kaustinen, Central Ostrobothnia, Finland
15.3km (9.5 miles) ⓘEmmes, Kaustinen, Central Ostrobothnia, Finland
17.7km (11.0 miles) ⓘSyväjärv, Kaustinen, Central Ostrobothnia, Finland
17.7km (11.0 miles) ⓘSyväjärvi, Seinäjoki, South Ostrobothnia, Finland
18.2km (11.3 miles) ⓘTuoreetsaaret, Kaustinen, Central Ostrobothnia, Finland
18.9km (11.8 miles) ⓘPäiväneva, Kaustinen, Central Ostrobothnia, Finland
19.8km (12.3 miles) ⓘHeikinkangas, Kaustinen, Central Ostrobothnia, Finland
References
Lynch, Edward P.; Szentpéteri, Krisztián; Andersson, Joel B.H.; Kuusela, Janne; Sadeghi, Martiya; Bauer, Tobias E. (2025) Lithium-caesium-tantalum (LCT) pegmatite mineralization in the Paleoproterozoic central Fennoscandian Shield (Sweden and Finland): A review of geological characteristics and assessment of mineral system commonalities. Ore Geology Reviews, 184. 106739 doi:10.1016/j.oregeorev.2025.106739
 
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