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

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(Томмотский массив)

Alkaline massif consist of intrusions of alkaline gabbroids and alkaline syenites.
Don't miss with Tommotskii massif of subalkaline syenites near Tommot settlement near Vilyui river on Aldan in Southern Yakutia.



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





Mineral List:
  		•  Aegirine
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [American Mineralogist, Volume 81, pages 766-770, 1996]
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Pavel M. Kartashov data]
  		•  Britholite-(Ce)
    Ca
     
    2
    		(Ce,Ca)
     
    3
    		[(OH,F)|(SiO
     
    4
    		,PO
     
    4
    		)
     
    3
    		]
    Reference: [Pavel M. Kartashov data]
  		•  Chevkinite-(Ce)
    (Ce,La,Ca,Th)
     
    4
    		(Fe
    2+
     
    		,Mg)(Fe
    2+
     
    		,Ti,Fe
    3+
     
    		)
     
    2
    		(Ti,Fe
    3+
     
    		)
     
    2
    		[O
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
     
    2
    Reference: [Pavel M. Kartashov data]
  		•  Fergusonite-(Y)
    YNbO
     
    4
    Reference: [Pavel M. Kartashov data]
  		•  Gadolinite-(Y)
    Y
     
    2
    		Fe
    2+
     
    		Be
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    Reference: [no reference; Pavel M. Kartashov data]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [American Mineralogist, Volume 81, pages 766-770, 1996]
  		•  Kamphaugite-(Y)
    Ca(Y,REE)[OH|(CO
     
    3
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [no reference]
    Site Photo
    Tommotskii Massif, Tommot river, Selennyakh range, Cherskii range system, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
    © Pavel M. Kartashov
  		•  Monazite-(Ce)
    (Ce,La,Nd,Th)PO
     
    4
    Reference: [Pavel M. Kartashov data]
  		•  Proshchenkoite-(Y) (TL)
    (Y,REE,Ca,Na,Mn)
     
    15
    		Fe
    2+
     
    		Ca(P,Si)Si
     
    6
    		B
     
    3
    		O
     
    34
    		F
     
    14
    Type Locality: Tommotskii Massif, Tommot river, Selennyakh range, Cherskii range system, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
    Reference: [Mineralogical Magazine 72,1071(2008)]
    Site Photo
    Tommotskii Massif, Tommot river, Selennyakh range, Cherskii range system, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
    © Thomas Witzke
  		•  Tengerite-(Y)
    Y
     
    2
    		[CO
     
    3
    		]
     
    3
    		 · 2-3H
     
    2
    		O
    Reference: [no reference]
  		•  Thorite
    (Th,U)[SiO
     
    4
    		]
    Reference: [no reference]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [American Mineralogist, Volume 81, pages 766-770, 1996]
  		•  Yttrialite-(Y)
    (Y,Th)
     
    2
    		[Si
     
    2
    		O
     
    7
    		]
    Reference: [no reference]
    Site Photo
    Tommotskii Massif, Tommot river, Selennyakh range, Cherskii range system, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
    © Pavel M. Kartashov
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [no reference; American Mineralogist, Volume 81, pages 766-770, 1996]


    15 entries listed. 15 valid minerals. 1 type locality (valid mineral).

    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!
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