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Forshammar Pegmatite Quarries, Ramsberg, Lindesberg, Västmanland, Sweden

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 59° North , 15° East (est.)
Margin of Error:~57km
Other regions containing this locality:Scandinavia
Köppen climate type:Dfc : Subarctic climate
Name(s) in local language(s):Forshammars Bergverk


Forshammars pegmatite quarries- is in fact two separate quarries approximately 1km apart. The older Klinttjärnbo and Limbergsbo. The name Forshammar comes from a small metal industry nearby and the quarries has basically only been known under the last name (transl. from Lundegårdh). Geologically it is located in the western central part of the Paleoproterozoic ( ca. 2.0-1.8 Ga) Bergslagen ore province. The granite pegmatites are hosted in felsic volcanic units.

Dravite from the pegmatites has the highest, although still trace, amount of REE as for pegmatitic tourmaline, with ≤ 1200 ppm REE, incl. ≤ 210 ppm La and ≤ 670 ppm Ce.


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References

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Lundegårdh, P.H. (1971): Nyttosten i Sverige. Almqvist & Wiksell, Stockholm, 271pp
Bačík, P., Uher, P., Ertl, A., Jonsson, E., Nysten, P., Kanický, V., Vaculovič, T. (2012): Zoned REE Enriched Dravite from a Granitic Pegmatite in Forshammar Bergslagen Province, Sweden an Empa Xrd and La–Icp-Ms Study. Canadian Mineralogist: 50: 825-841

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