Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Muscovite from
Tarikko, Seinäjoki, South Ostrobothnia, Finland


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 Tarikko, Seinäjoki, South Ostrobothnia, Finland
Data Identifiers
Mindat Occurrence Record ID:945404
Long-form Identifier:1:3:945404:0
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.3km (0.2 miles) ⓘTarinkorpi, Seinäjoki, South Ostrobothnia, Finland
12.0km (7.5 miles) ⓘKalliosalo, Seinäjoki, South Ostrobothnia, Finland
12.5km (7.8 miles) ⓘHunnakko, Alavus, South Ostrobothnia, Finland
12.8km (8.0 miles) ⓘTervasmäki S, Seinäjoki, South Ostrobothnia, Finland
13.0km (8.1 miles) ⓘP-K pegmatite, Seinäjoki, South Ostrobothnia, Finland
14.6km (9.0 miles) ⓘPajuluoma, Seinäjoki, South Ostrobothnia, Finland
14.7km (9.1 miles) ⓘPerälänjuoni, Pajuluoma, Seinäjoki, South Ostrobothnia, Finland
15.4km (9.6 miles) ⓘPuolivälinkalliot pegmatite, Seinäjoki, South Ostrobothnia, Finland
16.6km (10.3 miles) ⓘKaatiala pegmatite, Kuortane, South Ostrobothnia, Finland
18.2km (11.3 miles) ⓘHaapaluoma pegmatite, Peräseinäjoki, Seinäjoki, South Ostrobothnia, Finland
References
Alviola, Reijo (1987) Tutkimustyöselostus Nurmon kunnassa valtausalueella Tarikko 1, kaivosrek. nro 3524, suoritetuista tutkimuksista. Geologian Tutkimuskeskus M 061/2222/-87/1/85
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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