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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Columbite-(Fe)-Columbite-(Mn) Series from
Otanmäki granite, Kajaani, Kainuu, Finland


Locality type:Complex
Classification
Species:'Columbite-(Fe)-Columbite-(Mn) Series' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Columbite-(Fe)-Columbite-(Mn) Series data
Locality Data:Click here to view Otanmäki granite, Kajaani, Kainuu, Finland
Data Identifiers
Mindat Occurrence Record ID:1374126
Long-form Identifier:1:3:1374126:8
GUID (UUID V4):0
Localities for Columbite-(Fe)-Columbite-(Mn) Series in this Region
Otanmäki Mine, Otanmäki granite, Kajaani, Kainuu, Finland
Nearest other occurrences of Columbite-(Fe)-Columbite-(Mn) Series
0.7km (0.5 miles) ⓘOtanmäki Mine, Otanmäki granite, Kajaani, Kainuu, Finland
14.3km (8.9 miles) ⓘKatajakangas deposit, Kajaani, Kainuu, Finland
References
Marmo, V., Hoffrén, K., Hytönen, K., Kallio, P., Lindholm, O., Siivola, J. (1966) On the granites of Honkamäki and Otanmäki, Finland, with special reference to the mineralogy of accessories. Bulletin de la Commission Géologique de Finlande Vol. 221. Geological Survey of Finland
 
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