Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Belkovite

Big Photo

Vuoriyarvi alkaline-ultrabasic massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Pavel M. Kartashov

Show Belkovite Photos (2)
Formula:
Ba
 
3
(Nb,Ti)
 
6
[O
 
6
|Si
 
2
O
 
7
]
 
2
System:HexagonalColour:Brown
Hardness:6 - 7
This page provides mineralogical data about Belkovite.

Classification of Belkovite

IMA status:Approved
Strunz 8th edition ID:8/C.14-30
Nickel-Strunz 10th (pending) edition ID:9.BE.75

9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
Hey's CIM Ref.:17.8.11

17 : Silicates Containing other Anions
8 : Silicates with niobate or tantalate
mindat.org URL:http://www.mindat.org/min-609.html
Please feel free to link to this page.

Type Occurrence of Belkovite

Type Locality:Vuoriyarvi alkaline-ultrabasic massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Year of Discovery:1991

Physical Properties of Belkovite

Colour:Brown
Hardness (Mohs):6 - 7

Crystallography of Belkovite

Crystal System:Hexagonal
Cell Parameters:a = 8.96Å, c = 7.79Å
Ratio:a:c = 1 : 0.869
Unit Cell Volume:V 541.61 ų (Calculated from Unit Cell)

Optical Data of Belkovite

Type:Uniaxial (+)
RI values: nω = 1.928 nε = 2.002
Maximum Birefringence:δ = 0.074

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High

Chemical Properties of Belkovite

Formula:
Ba
 
3
(Nb,Ti)
 
6
[O
 
6
|Si
 
2
O
 
7
]
 
2
Essential elements:Ba, Nb, O, Si
All elements listed in formula:Ba, Nb, O, Si, Ti
Common Impurities:Zr,Al,Fe,Ta,Ca,Na,K

Relationship of Belkovite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.BE.02Wadsleyite
(Mg,Fe
2+
 
)
 
2
[SiO
 
4
]
9.BE.05Hennomartinite
SrMn
3+
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.05Lawsonite
CaAl
 
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.05Noelbensonite
BaMn
3+
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.05Itoigawaite
SrAl
 
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.07Ilvaite
CaFe
2+
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.07Manganilvaite
Ca(Mn
2+
 
,Fe
2+
 
)
 
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.10Suolunite
Ca
 
2
[H
 
2
Si
 
2
O
 
7
] · H
 
2
O
9.BE.12Jaffeite
Ca
 
6
[(OH)
 
6
|Si
 
2
O
 
7
]
9.BE.15Fresnoite
Ba
 
2
Ti[O|Si
 
2
O
 
7
]
9.BE.17Baghdadite
Ca
 
3
(Zr,Ti)[O
 
2
|Si
 
2
O
 
7
]
9.BE.17Burpalite
Na
 
2
CaZr[F
 
2
|Si
 
2
O
 
7
]
9.BE.17Cuspidine
Ca
 
4
[(F,OH)
 
2
|Si
 
2
O
 
7
]
9.BE.17Hiortdahlite
(Ca,Na)
 
3
(Zr,Ti)Si
 
2
O
 
7
(O,OH,F)
 
2
9.BE.17Janhaugite
(Na,Ca)
 
3
(Mn,Fe)
 
3
(Ti,Zr,Nb)
 
2
Si
 
4
O
 
15
(OH,F,O)
 
3
9.BE.17Låvenite
(Na,Ca)
 
2
(Mn
2+
 
,Fe
2+
 
)(Zr,Ti)[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Niocalite
(Ca,Nb)
 
4
[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Normandite
NaCa(Mn,Fe)(Ti,Nb,Zr)[(O,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Wöhlerite
NaCa
 
2
(Zr,Nb)[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Hiortdahlite I
(Na
 
3
Ca)Ca
 
8
Zr
 
2
(M
3+
 
)
 
2
(Si
 
2
O
 
7
)
 
4
O
 
3
F
 
5
9.BE.17IMA2005-005a
Na
 
2
Ca
 
4
(Nb,Zr)
 
2
[(O,F)
 
2
|Si
 
2
O
 
7
]
 
2
9.BE.20Mosandrite
(Ca,Na,Ce)
 
12
(Ti,Zr)
 
2
[F
 
4
|(OH)
 
6
|SiO
 
4
|(Si
 
2
O
 
7
)
 
3
]
9.BE.20Nacareniobsite-(Ce)
Na
 
3
Ca
 
3
(Ce,La,Nd)Nb[F
 
3
|O|(Si
 
2
O
 
7
)
 
2
]
9.BE.20Rinkite
Na(Na,Ca)
 
2
(Ca,Ce)
 
4
Ti[F
 
2
|(O,F)
 
2
|(Si
 
2
O
 
7
)
 
2
]
9.BE.22Götzenite
Na
 
2
Ca
 
5
Ti[F
 
4
|(Si
 
2
O
 
7
)
 
2
]
9.BE.22Hainite
Na
 
4
Ca
 
8
(Ti,Zr,Mn)
 
3
[F
 
4
|(Si
 
2
O
 
7
)
 
2
]
 
2
9.BE.22Rosenbuschite
(Ca,Na)
 
3
(Zr,Ti)[O|F|Si
 
2
O
 
7
]
9.BE.22Kochite
(Na,Ca)
 
3
Ca
 
2
(Mn,Ca)ZrTi[(F,O)
 
4
|(Si
 
2
O
 
7
)
 
2
]
9.BE.23Dovyrenite
Ca
 
6
Zr(Si
 
2
O
 
7
)
 
2
(OH)
 
4
9.BE.25Barytolamprophyllite
(Ba,Na)
 
2
(Na,Ti,Fe
3+
 
)
 
4
Ti
 
2
[O|(OH,F)|Si
 
2
O
 
7
]
 
2
9.BE.25Ericssonite
BaMn
2+
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.25Lamprophyllite
(Sr,K,Ba)
 
2
(Na,Ti,Mn
2+
 
,Fe
3+
 
)
 
4
Ti
 
2
[O|(O,OH,F)|Si
 
2
O
 
7
]
 
2
9.BE.25Orthoericssonite
BaMn
2+
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.25Seidozerite
Na
 
8
Zr
 
3
Ti
 
3
Mn
2+
2
[O|F|Si
 
2
O
 
7
]
 
4
9.BE.25Nabalamprophyllite
Na
 
3
(Ba,Na)
 
2
Ti
 
3
[O|(OH,F)|Si
 
2
O
 
7
]
 
2
9.BE.25Grenmarite
(Zr,Mn)
 
2
(Zr,Ti)(Mn,Na)(Na,Ca)
 
4
(Si
 
2
O
 
7
)
 
2
(O,F)
 
4
9.BE.27Murmanite
Na
 
2
(Ti,Nb)
 
2
Si
 
2
O
 
9
·nH
 
2
O
9.BE.30Epistolite
Na
 
2
(Nb,Ti)
 
2
[O
 
2
|Si
 
2
O
 
7
] · nH
 
2
O
9.BE.32Lomonosovite
Na
 
5
Ti
 
2
[O
 
2
|PO
 
4
|Si
 
2
O
 
7
]
9.BE.35Vuonnemite
Na
 
11
Ti
4+
 
Nb
 
2
(Si
 
2
O
 
7
)
 
2
(PO
 
4
)
 
2
O
 
3
(F,OH)
9.BE.37Sobolevite
Na
 
12
Ca(NaCaMn)Ti
 
2
(Si
 
2
O
 
7
)
 
2
(PO
 
4
)
 
4
O
 
3
F
 
3
9.BE.40Innelite
Na
 
2
(Ba,K)
 
4
(Mg,Ca,Fe)Ti
 
3
Si
 
4
O
 
18
(OH,F)
 
1.5
SO
 
4
9.BE.40Phosphoinnelite
Ba
 
4
Na
 
3
Ti
 
3
[(O,F)
 
3
|(PO
 
4
,SO
 
4
)
 
2
|Si
 
4
O
 
14
]
9.BE.42Yoshimuraite
Ba
 
2
Mn
 
2
TiOSi
 
2
O
 
7
(PO
 
4
)(OH)
9.BE.45Quadruphite
Na
 
14
Ca
 
2
Ti
 
4
[O
 
2
|F|(PO
 
4
)
 
2
|Si
 
2
O
 
7
]
 
2
9.BE.47Polyphite
Na
 
5
(Na
 
4
Ca
 
2
)Ti
 
2
(Si
 
2
O
 
7
)(PO
 
4
)
 
3
O
 
2
F
 
2
9.BE.50Bornemanite
BaNa
 
4
Ti
 
2
NbSi
 
4
O
 
17
(F,OH)·Na
 
3
PO
 
4
9.BE.50Shkatulkaite
Na
 
10
Mn
2+
 
Ti
 
3
Nb
 
3
[(OH)
 
2
|F|(Si
 
2
O
 
7
)
 
6
] · 12H
 
2
O
9.BE.50Shkatulkalite
9.BE.50Bykovaite
BaNa(Na,Ti)
 
4
[(OH,F)
 
2
|(Ti,Nb)
 
2
Si
 
4
O
 
14
(O,OH)
 
3
] · 3H
 
2
O
9.BE.55Bafertisite
Ba(Fe
3+
 
,Mn
2+
 
)
 
2
Ti[O|(O,OH)
 
2
|Si
 
2
O
 
7
]
9.BE.55Hejtmanite
Ba(Mn
2+
 
,Fe
2+
 
)
 
2
Ti[O|(OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.55Nechelyustovite
(Ba,Na)
 
2
{(Na,Ti,Mn)
 
4
[(Ti,Nb)
 
2
(OH)
 
3
Si
 
4
O
 
14
](OH,O,F)
 
2
} · 3H
 
2
O
9.BE.60Delindeite
(Na,K)
 
2.7
(Ba,Ca)
 
4
(Ti,Fe,Al)
 
6
Si
 
8
O
 
26
(OH)
 
14
9.BE.65Bussenite
Na
 
2
Ba
 
2
FeTiSi
 
2
O
 
7
(CO
 
3
)(OH)
 
3
F
9.BE.67Jinshajiangite
(Na,Ca)(Ba,K)(Fe,Mn)
 
4
Ti
 
2
Si
 
4
O
 
16
(F,O,OH)
 
2-3
9.BE.67Perraultite
(Na,Ca)(Ba,K)(Mn,Fe)
 
4
(Ti,Nb)
 
2
Si
 
4
O
 
16
(OH,F,O)
 
3
9.BE.67Surkhobite
(Ba,K)
 
2
CaNaMn
 
8
Ti
 
4
(Si
 
2
O
 
7
)
 
4
O
 
4
(F,OH,O)
 
6
9.BE.70Karnasurtite-(Ce)
(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si,P)
 
2
O
 
7
(OH)
 
4
·3H
 
2
O
9.BE.70Perrierite-(Ce)
(Ce,Ca,Th)
 
4
(Mg,Fe
2+
 
)
 
2
(Ti,Fe
3+
 
)
 
3
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Strontiochevkinite
(Sr,La,Ce,Ca)
 
4
Fe
3+
 
(Ti,Zr)
 
2
Ti
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Chevkinite-(Ce)
(Ce,La,Ca,Na,Th)
 
4
(Fe
2+
 
,Mg)(Fe
3+
 
,Ti,Fe
2+
 
)
 
2
(Ti,Fe
3+
 
,Nb)
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Polyakovite-(Ce)
(Ce,Ca)
 
4
(Mg,Fe
2+
 
)(Cr
3+
 
,Fe
3+
 
)
 
2
(Ti,Nb)
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Rengeite
Sr
 
4
ZrTi
 
4
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Matsubaraite
Sr
 
4
Ti
 
5
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Dingdaohengite-(Ce)
Ce
 
4
Fe
2+
 
Ti
 
2
Ti
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Maoniupingite-(Ce)
(REE,Ca)
 
4
(Fe
3+
 
,Ti,Fe
2+
 
,[])(Ti,Fe
3+
 
,Fe
2+
 
,Nb)
 
4
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Perrierite-(La)
(La,Ce, Ca)
 
4
(Fe,Mn
2+
 
,Mg)(Ti,Fe)
 
4
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.72Fersmanite
(Ca,Na)
 
4
(Ti,Nb)
 
2
Si
 
2
O
 
11
(F,OH)
 
2
9.BE.77Nasonite
Pb
 
6
Ca
 
4
[Cl
 
2
|(Si
 
2
O
 
7
)
 
3
]
9.BE.80Kentrolite
Pb
 
2
Mn
3+
2
[O
 
2
|Si
 
2
O
 
7
]
9.BE.80Melanotekite
Pb
 
2
Fe
3+
2
[O
 
2
|Si
 
2
O
 
7
]
9.BE.82Tilleyite
Ca
 
5
[(CO
 
3
)
 
2
|Si
 
2
O
 
7
]
9.BE.85Killalaite
Ca
 
3
[Si
 
2
O
 
7
] · 0.5H
 
2
O
9.BE.87Stavelotite-(La)
(La,Nd,Ca)
 
3
Mn
2+
3
Cu(Mn
3+
 
,Fe
3+
 
,Mn
4+
 
)
 
26
[O
 
5
|Si
 
2
O
 
7
]
 
6
9.BE.90Biraite-(Ce)
Ce
 
2
Fe
2+
 
[CO
 
3
|Si
 
2
O
 
7
]
Related Minerals - Hey's Index Grouping:
17.8.1Epistolite
Na
 
2
(Nb,Ti)
 
2
[O
 
2
|Si
 
2
O
 
7
] · nH
 
2
O
17.8.2Murmanite
Na
 
2
(Ti,Nb)
 
2
Si
 
2
O
 
9
·nH
 
2
O
17.8.3Perraultite
(Na,Ca)(Ba,K)(Mn,Fe)
 
4
(Ti,Nb)
 
2
Si
 
4
O
 
16
(OH,F,O)
 
3
17.8.4Niocalite
(Ca,Nb)
 
4
[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
17.8.5Mongolite
Ca
 
4
Nb
 
6
Si
 
5
O
 
24
(OH)
 
10
·nH
 
2
O
17.8.6Fersmanite
(Ca,Na)
 
4
(Ti,Nb)
 
2
Si
 
2
O
 
11
(F,OH)
 
2
17.8.7Nacareniobsite-(Ce)
Na
 
3
Ca
 
3
(Ce,La,Nd)Nb[F
 
3
|O|(Si
 
2
O
 
7
)
 
2
]
17.8.8Nenadkevichite
(Na,Ca)(Nb,Ti)Si
 
2
O
 
7
·2H
 
2
O
17.8.9Natrokomarovite
(Na,Ca,H)
 
2
Nb
 
2
Si
 
2
O
 
10
(OH,F)
 
2
·H
 
2
O
17.8.10Wöhlerite
NaCa
 
2
(Zr,Nb)[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
17.8.12Baotite
Ba
 
4
(Ti,Nb)
 
8
Si
 
4
O
 
28
Cl
17.8.13Shcherbakovite
Na(K,Ba)
 
2
(Ti,Nb)
 
2
[O|Si
 
2
O
 
6
]
 
2
17.8.14Ilímaussite-(Ce)
(Na,K)
 
7-8
(Ba,K)
 
10
Ce
 
5
(Nb,Ti)
 
6
[O
 
6
|Si
 
9
O
 
18
(O,OH)
 
24
|(Si
 
6
O
 
18
)
 
2
]
17.8.15Komarovite
(Ca,Mn)Nb
 
2
[O
 
3
|Si
 
2
O
 
7
] · 3.5H
 
2
O
17.8.16Manganbelyankinite
(Mn,Ca)(Ti,Nb)
 
5
O
 
12
·9H
 
2
O
17.8.17Niobophyllite
(K,Na)
 
3
(Fe,Mn)
 
6
(Nb,Ti)
 
2
Si
 
8
(O,OH,F)
 
31
17.8.18Caesium-Kupletskite

Other Names for Belkovite

Synonyms:
IMA1989-053
German names:
Belkovit
Russian names:
Бельковит
Spanish names:
Belkovita

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 Belkovite

Reference List:New Mins. (1997), New Minerals 1990-1994.

Neues Jahrbuch für Mineralogie, Monatshefte (1991): 23-31.

Internet Links for Belkovite

Search Engines:
  • Look for Belkovite on Google
  • Look for Belkovite images on Google
    • External Links:
  • Look for Belkovite on Webmineral
  • Look for Belkovite on Athena Mineralogy
  • Look for Belkovite on Wikipedia
  • Look for Belkovite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Belkovite in the Natural History Museum (London) online catalogue
  • Belkovite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • High-end worldwide specimens & outstanding customer service
  • Buy Fine Minerals from mineralsweb.com
  • rare and unusual minerals mainly crystallized
  • Buy fine minerals and gemstones from Pala International
  • Fine Minerals from Dan Weinrich Minerals
  • Find Belkovite on www.crystalclassics.co.uk
  • Wilensky Fine Minerals
  • Buy from David K Joyce minerals
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Buy Minerals and Crystals from Crystalarium.com
  • Rare and Unusual minerals at Mineralogical Research Company
  • Fabre Minerals - search for Belkovite specimens
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Belkovite

    (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
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia (Buryatia) Republic
          • Vitim Plateau
            • Biraya and Bya Rivers confluence area (Chara Basin)
    		C. Lemanski, Jr. (re-entry of lost Mindat data).
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		Neues Jb. Min,Mh.(1991) 23-31
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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.