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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Cassiterite from
Toivo Mine (Usko-Toivo-Rakkaus), Old Mining Field, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia


Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Toivo Mine (Usko-Toivo-Rakkaus), Old Mining Field, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
Data Identifiers
Mindat Occurrence Record ID:137670
Long-form Identifier:1:3:137670:8
GUID (UUID V4):0
References
Nefedov, E.I., Griffin, W.L., Kristiansen, R. (1977) Minerals of the schoenfliesite-wickmanite series from Pitkaranta, Karelia, U.S.S.R.. The Canadian Mineralogist: 15(4): 437–445.
Valkama, M. M., Sundblad, K. L., Lokhov, K. I., & Cook, N. J. (2013). Geology and genesis of granites and polymetallic skarn ores at Pitkäranta, Ladoga Karelia, Russia. In Mineral Deposit Research For A High-Tech World. Proceedings of the 12th Biennial SGA Meeting, Uppsala, Sweden (pp. 1555-1558).
 
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