Iimoriite-(Y)Suishoyama pegmatite, Iizaka Village, Kawamata, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
A pegmatite shaped like a vertical pipe of 60m diameter. Worked for its major components (perthitic feldspar and quartz) for the ceramic industry. Unusually rich in yttrium-bearing minerals.
The largest pegmatite body in an area rich in other pegmatites.
Mining started in 1916 and closed in the early 1980s.
According to Hori et al. (2006) Iizaka (Iisaka) Village is the old locality name; the pegmatite is near Kawamata town.
Mineral List
36 entries listed. 27 valid minerals. 3 type localities (valid minerals).
The above list 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.
References
- Hasegawa (1957), Sci. Rept. Tohoku University, Third series: 5: 345-371.
Miyawaki, Ritsuro, Kuriyama, Junko, and Naki, Izumi, 1993, The redefinition of tengerite- (Y) , Y2(CO3)3.2-3H2O, and its crystal structure, American Mineralogist, 78: 425-432.
Hori, H., Kobayashi, T., Miyawaki, R., Matsubara, S., Yokoyama, K., Shimizu, M. (2006): Iwashiroite-(Y), YTaO4, a new mineral from Suishoyama, Kawamata Town, Fukushima Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 101, 170-177.
- Hoshino, M., Kimata, M., Shimizu, M., Nishida, N., and Fujiwara, T. (2006) Allanite-(Ce) in granitic rocks from Japan: Genetic implications of patterns of REE and Mn enrichment. Canadian Mineralogist: 44: 45-62.
Mineral and Locality Search
