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About MongoliteHide

The typical Mongolian landscape.

Khovd Province, Mongolia
Ca4Nb6Si5O24(OH)10 · nH2O
Crystal System:
Named after the country of origin.
This page provides mineralogical data about Mongolite.

Classification of MongoliteHide


9 : SILICATES (Germanates)
H : Unclassified silicates
F : With Nb, Ta, Zr

56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination

17 : Silicates Containing other Anions
8 : Silicates with niobate or tantalate

Pronounciation of MongoliteHide

PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of MongoliteHide


Optical Data of MongoliteHide

Uniaxial (-)
RI values:
nω = 1.800 nε = 1.740
Max Birefringence:
δ = 0.060
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of MongoliteHide

Ca4Nb6Si5O24(OH)10 · nH2O
IMA Formula:
Ca4Nb6Si5O24(OH)10 · 6H2O
Common Impurities:

Crystallography of MongoliteHide

Crystal System:
Cell Parameters:
a = 7 Å, c = 29.01 Å
a:c = 1 : 4.144
Unit Cell V:
1,421.49 ų (Calculated from Unit Cell)

Type Occurrence of MongoliteHide

Synonyms of MongoliteHide

Other Language Names for MongoliteHide


Common AssociatesHide

Associated Minerals Based on Photo Data:
7 photos of Mongolite associated with QuartzSiO2
5 photos of Mongolite associated with Kovalenkoite(K,Sr,Ba)2Ca5Nb12[Si8O52(O,OH)] · 15H2O
1 photo of Mongolite associated with Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2

Related Minerals - Nickel-Strunz GroupingHide

9.HF.10LoudouniteNaCa5Zr4Si16O40(OH)11 · 8H2O

Related Minerals - Dana Grouping (8th Ed.)Hide,Ti)(Si2O7)O2Mon.,OH)2Mon. 2/m : P21/båvenite(Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2Mon. 2/m : P21/böhleriteNaCa2(Zr,Nb)(Si2O7)(O,OH,F)2Mon. 2 : P21,Nb)4(Si2O7)(O,OH,F)2Mon.,Ca)2Ca4Zr(Mn,Ti,Fe)(Si2O7)2(F,O)4Tric. 1 : P1 1 : P1,REE)Ti(Si2O7)2OF3Tric. 1 : P1,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m · 8H2OTric.,Mn)(Nb,Ti)2[Si2O7](O,F)3 · 3.5H2OOrth.,Ca,H)2Nb2Si2O10(OH,F)2 · H2OOrth. · H2OOrth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.8.1EpistoliteNa2(Nb,Ti)2(Si2O7)O2 · nH2OTric.
17.8.2MurmaniteNa2Ti2(Si2O7)O2 · 2H2OTric.
17.8.3PerraultiteBaNaMn2+4Ti2(Si2O7)2O2(OH)2FMon. 2/m : B2/m
17.8.7Nacareniobsite-(Ce)NbNa3Ca3(Ce,REE )(Si2O7)2OF3Mon.
17.8.8Nenadkevichite(Na,◻)8Nb4(Si4O12)2(O,OH)4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pbam
17.8.9Natrokomarovite(Na,Ca,H)2Nb2Si2O10(OH,F)2 · H2OOrth.
17.8.10WöhleriteNaCa2(Zr,Nb)(Si2O7)(O,OH,F)2Mon. 2 : P21
17.8.12BaotiteBa4Ti8Si4O28ClTet. 4/m : I41/a
17.8.14Ilímaussite-(Ce)(Na,K)7-8(Ba,K)10Ce5(Nb,Ti)6(Si3O9)4(Si9O18)O6(O,OH)24Trig. 3 2 : R3 2
17.8.15Komarovite(Ca,Mn)(Nb,Ti)2[Si2O7](O,F)3 · 3.5H2OOrth.
17.8.16Manganbelyankinite(Mn,Ca)(Ti,Nb)5O12 · 9H2O

Other InformationHide

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

References for MongoliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1986): 71: 1279.

Internet Links for MongoliteHide

Localities for MongoliteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Ömnögovi Province
    • Khanbogd District
Kynicky, J., Chakhmouradian, A. R., Xu, C., Krmicek, L., & Galiova, M. (2011). Distribution and evolution of zirconium mineralization in peralkaline granites and associated pegmatites of the Khan Bogd complex, southern Mongolia. The Canadian Mineralogist, 49(4), 947-965. Vladykin, N.V. (ed.) Deep-Seated Magmatism, its Sources and Plumes. Proceedings of the VI International Workshop, Irkutsk. Glazkovskaya Printing House, Irkutsk, Russia, 17-45. Kovalenko, V. I., Yarmoluyk, V. V. et al. 2006. Geology and age of Khan-Bogdinsky massif of alkaline granitoids in southern Mongolia. Kovalenko, V. I., Yarmoluyk, V. V., Sal’nikova, E. B., Kozlovsky, A. M., Kotov, A. B., Kovach, V. P., ... & Ponomarchuk, V. A. (2006). Geology, geochronology, and geodynamics of the Khan Bogd alkali granite pluton in southern Mongolia. Geotectonics, 40(6), 450-466. Gerel, O., Oyungerel, S., & Minjin, C., 2005. Intrusive Magmatism of South Mongolia. Amar-Amgalan, S., Gerel, O., Shigeru, I. & Garamjav, D. 2003. Preliminary results on petrological and geochemical study of the Khanbogd alkaline granite complex, South Mongolia. Mongolian Geoscientist, 21, 53-56. Seltmann, R., Gerel, O., & Kirwin, D. Geodynamics and Metallogeny of Mongolia with a special emphasis on copper and gold deposits. IAGOD guidebook series, 11. CERCAMS/Natural History Museum, London, 131-148.
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (Proceedings of the Russian Mineralogical Society) (and Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva) (1985): 114, 374-377.
  • Murmansk Oblast
    • Khibiny Massif
Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
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