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Niobochevkinite

Formula:
(Ce,La,Ca,Th)
 
4
Fe
2+
 
(Fe
2+
 
,Ti,Fe
3+
 
)
 
2
(Ti,Nb,Fe
3+
 
)
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
A variety of Chevkinite-(Ce)

Described by B.A. Makarochkin in 1959 from fenitised granitic pegmatite of Mine #378 of Ilmen Mineralogical Reserve. The material contain up to 7.40 wt.% of Nb^2O^5.

Classification of Niobochevkinite

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Chemical Properties of Niobochevkinite

Formula:
(Ce,La,Ca,Th)
 
4
Fe
2+
 
(Fe
2+
 
,Ti,Fe
3+
 
)
 
2
(Ti,Nb,Fe
3+
 
)
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
All elements listed in formula:Ca, Ce, Fe, La, Nb, O, Si, Th, Ti

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Niobochevkinite

Reference List:- Makarochkin B.A. Gonibesova K.M., Makarochkina M.S. (1959) Chevkinite from Ilmena Mountains, - Zapiski VMO, pt.88, N5, pp. 546-553 (in Rus.)

Internet Links for Niobochevkinite

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    Localities for Niobochevkinite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Ilmen Mts
            • Ilmen Natural Reserve
    		Makarochkin B.A. Gonibesova K.M., Makarochkina M.S. (1959) Chevkinite from Ilmena Mountains, - Zapiski VMO, pt.88, N5, pp. 546-553 (in Rus.)
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Nov 2009 01:17:01