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Pyörönmaa pegmatite, Valkeakoski, Western and Inner Finland Region, Finland

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 61° North , 24° East (est.)
Margin of Error:~15km
Köppen climate type:Dfc : Subarctic climate
Name(s) in local language(s):Pyörönmaan pegmatiitti, Valkeakoski, Länsi- ja Sisä-Suomi (Västra och Inre Finland), Suomi (Finland)

A granite pegmatite, known for its REE minerals, situated inside a late kinematic Svecofennidic granite body (Siivola, 1975). This pegmatite, located about 400 m W of the southern shore of Lake Väha Leppäjärvi, is part of Valkeakoski municipality.

Mineral List

31 valid minerals. 1 (TL) - type locality of valid minerals.

Rock Types Recorded

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This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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Vorma, A., Ojanperä, P., Hoffrén, V., Siivola, J., Löfgren, A. (1966): On the rare earth minerals from the Pyörönmaa pegmatite in Kangasala, SW-Finland. Comptes rendus de la Société géologique de Finlande, 38, 241-274.
Siivola, J. (1975): The lanthanoid content of some minerals from the Pyörönmaa pegmatite in Kangasala, Finland. Geological Survey of Finland Bulletin, 276, 1-17.
Wilke, H.-J. (1981): Finnische Pegmatite. Lapis, Jg.6, Nr.7/8, 41.
Miyawaki, R., Kuriyama, J., Nakai, I. (1993): The redefinition of tengerite-(Y), Y2(CO3)3.2-3H2O, and its crystal structure. American Mineralogist, 78, 425-432.
Mäkitie, H., Ervanne, H. (2007): Fe(II)/Fetot and U(IV)/Utot in pegmatite minerals from southern Finland. Granitic Pegmatites: The State of the Art, International Symposium, Porto, Portugal, 06th-12th May, 2007. Book of abstracts. Martins, T. & Vieira R. (eds.), Universidade do Porto, Faculdade de Ciências, Departamento de Geologia, Porto, Memórias, vol. 8, 62-63.
Lahti, S.I., Kärkkäinen, N. (2009): Esiselvitys: REE-mineraalien esiintyminen Etelä-Suomen graniiteissa ja graniitti-pegmatiiteissa. Geologian tutkimuskeskus (GKT), raportti 28/2016, 28 pp.

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