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Tommotskii Massif, Tommot river, Selennyakh range, Cherskii range system, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia

Yttrialite-(Y)
Tommotskii Massif, Tommot river, Selennyakh range, Cherskii range system, Polar Yakutia, Saha Republic, Eastern-Siberian Region, Russia

Photo: Pavel M. Kartashov
Томмотский массив

Alkaline massif consist of intrusions of alkaline gabbroids and alkaline syenites.
No to be confused with Tommotskii massif of subalkaline syenites near Tommot settlement near Vilyui river on Aldan in Southern Yakutia.

Mineral List

Aegirine
Britholite-(Ce)
Chevkinite-(Ce)
Fergusonite-(Y)
Fluorapatite
Fluorite
Gadolinite-(Y)
Ilmenite
Kamphaugite-(Y)
Molybdenite
Monazite-(Ce)
Proshchenkoite-(Y) (TL)
Pyrite
Tengerite-(Y) ?
Thorite
Titanite
Yttrialite-(Y)
Zircon


18 entries listed. 18 valid minerals. 1 type locality (valid mineral).

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References

- Trunilina V.A., Parfenov L.M. e.a. (1996) Middlepaleozoic Tommotskii massif alkaline gabbroids and syenites of Verkhoyano-Kolyma mezozoides and its tectonic position, - Geologiya i Geofizika, N4, p. 71-82 (in Rus.)
- http://geo.stbur.ru/info/granites/st/st234.html

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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