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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Magnetite from
Otanmäki Mine, Otanmäki granite, Kajaani, Kainuu, Finland


04481830017272040985890.jpg
Titanium-bearing Magnetite, etc.

Otanmäki Mine, Otanmäki granite, Kajaani, Kainuu, Finland
04481830017272040985890.jpg
Titanium-bearing Magnetite, etc.

Otanmäki Mine, Otanmäki granite, Kajaani, Kainuu, Finland
04481830017272040985890.jpg
Titanium-bearing Magnetite, etc.

Otanmäki Mine, Otanmäki granite, Kajaani, Kainuu, Finland
Locality type:Mine
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Otanmäki Mine, Otanmäki granite, Kajaani, Kainuu, Finland
Data Identifiers
Mindat Occurrence Record ID:362284
Long-form Identifier:1:3:362284:1
GUID (UUID V4):0
Nearest other occurrences of Magnetite
7.9km (4.9 miles) ⓘHonkamäki, Kajaani, Kainuu, Finland
43.0km (26.7 miles) ⓘLamujärvi area, Pyhäntä, North Ostrobothnia, Finland
58.1km (36.1 miles) ⓘHallapera deposit, Kiuruvesi, North Savo, Finland
63.6km (39.5 miles) ⓘLahnaslampi talc deposit, Sotkamo, Kainuu, Finland
69.0km (42.9 miles) ⓘRuostesuo Mine, Kiuruvesi, North Savo, Finland
73.1km (45.4 miles) ⓘPyhäsalmi Mine, Pyhäjärvi, North Ostrobothnia, Finland
97.6km (60.7 miles) ⓘEnsilä, Näätäniemi, Kuhmo, Kainuu, Finland
98.8km (61.4 miles) ⓘSäviä deposit, Pielavesi, North Savo, Finland
99.2km (61.6 miles) ⓘKopsa, Haapajärvi, North Ostrobothnia, Finland
References
E. Aurola: The Mines and Quarries of Finland. Helsinki, 1954.
B.K., WELCH (1958) THE OCCURRENCE MD PARAGENESIS OP THE ORES OP TITANIUM. PhD Thesis Durham University
en.gtk.fi (2013) http://en.gtk.fi/ExplorationFinland/Moreinfo/otanmaki.html
Al-Ani, Thair, Molnár, Ferenc, Lintinen, Panu, Leinonen, Seppo (2018) Geology and Mineralogy of Rare Earth Elements Deposits and Occurrences in Finland. Minerals, 8 (8) 356 doi:10.3390/min8080356
 
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