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Natrokomarovite

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Formula:
(Na,Ca,H)2Nb2Si2O10(OH,F)2 · H2O
System:
Orthorhombic
Colour:
Translucent white
Hardness:
4
Name:
Ex "sodium-komarovite"; ex "Na-komarovite" discredited as silicified pyrochlore by Krivokoneva et al. (1979); revalidation by Pekov et al. (2004) not approved.
An apparent Na analogue of komarovite.

Classification of Natrokomarovite

Not Approved
9.CE.45

9 : SILICATES (Germanates)
C : Cyclosilicates
E : [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions
56.2.4.13

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
17.8.9

17 : Silicates Containing other Anions
8 : Silicates with niobate or tantalate
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First Recorded Occurrence of Natrokomarovite

Physical Properties of Natrokomarovite

Colour:
Translucent white
Hardness (Mohs):
4

Crystallography of Natrokomarovite

Crystal System:
Orthorhombic

Chemical Properties of Natrokomarovite

Formula:
(Na,Ca,H)2Nb2Si2O10(OH,F)2 · H2O
Essential elements:
All elements listed in formula:

Relationship of Natrokomarovite to other Species

9.CE.05PapagoiteCaCu[H3AlSi2O9]
9.CE.10VerplanckiteBa2(Mn,Fe,Ti)Si2O6(O,OH,Cl,F)2 · 3H2O or near
9.CE.15BaotiteBa4(Ti,Nb)8Si4O28Cl
9.CE.20NagashimaliteBa4(V,Ti)4B2Si8O27(O,OH)2Cl
9.CE.20TaramelliteBa4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2Clx
9.CE.20TitantaramelliteBa4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2Clx
9.CE.25Bario-orthojoaquinite(Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2O
9.CE.25Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2O
9.CE.25Joaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2O
9.CE.25Orthojoaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2O
9.CE.25StrontiojoaquiniteSr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2O
9.CE.25Strontio-orthojoaquinite(Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2O
9.CE.25Orthojoaquinite-(La)NaBa2La2Fe2+Ti2[Si4O12]2O2(O,OH) · H2O
9.CE.30eLabuntsovite-MnNa4K4(Ba,K)2Mn2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10-12H2O
9.CE.30aNenadkevichite(Na,◻)8Nb4(Si4O12)2(O,OH)4 · 8H2O
9.CE.30dLemmleinite-KK2(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2O
9.CE.30aKorobitsyniteNa2(Ti,Nb)2(Si4O12)(OH,O)2 · 3-4H2O
9.CE.30cKuzmenkoite-MnK2Mn2+(Ti,Nb)4(Si4O12)2(OH,O)4 · 5-6H2O
9.CE.30bVuoriyarvite-KK2(Nb,Ti)2(Si4O12)(O,OH)2 · 4H2O
9.CE.30bTsepinite-NaNa2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O
9.CE.30cKarupmøllerite-Ca(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2O
9.CE.30eLabuntsovite-MgNa4K4(Ba,K)2Mg(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2O
9.CE.30eLabuntsovite-FeNa4K4(Ba,K)2Fe2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2O
9.CE.30dLemmleinite-BaNa2K2Ba(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2O
9.CE.30cGjerdingenite-FeK2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O
9.CE.30hNeskevaaraite-FeK3Na2Fe2+(Ti,Nb)4(Si4O12)2(O,OH)4 · 5-6 H2O
9.CE.30bTsepinite-KK2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O
9.CE.30bParatsepinite-BaBa4(Ti,Nb)8(Si4O12)4(OH,O)8 · 8H2O
9.CE.30bTsepinite-CaCa(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O
9.CE.30hAlsakharovite-ZnNaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2O
9.CE.30cGjerdingenite-MnK2Mn2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O
9.CE.30cLepkhenelmite-Zn(Ba,K)2Zn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2O
9.CE.30bTsepinite-SrSr(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O
9.CE.30bParatsepinite-Na(Na,Sr,K,Ca)7(Ti,Nb)8(Si4O12)4(O,OH)8·nH2O n ~ 8
9.CE.30fParalabuntsovite-MgNa8K8Mg4Ti16(Si4O12)8(OH,O)16 · 20-24H2O
9.CE.30cGjerdingenite-CaK2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O
9.CE.30cGjerdingenite-NaK2Na(Nb,Ti)4(Si4O12)2(OH,O)4 · 5H2O
9.CE.30hGutkovaite-MnK2CaMn(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2O
9.CE.30cKuzmenkoite-ZnK2Zn(Ti,Nb)4(Si4O12)2(OH,O)4·6-8H2O
9.CE.30gOrganovaite-MnK2Mn(Nb,Ti)4(Si4O12)2(O,OH)4 · 5-7H2O
9.CE.30gOrganovaite-ZnK2Zn(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O
9.CE.30gParakuzmenkoite-Fe(K,Ba)4Fe(Ti,Nb)8(Si4O12)4(O,OH)8 · 14H2O
9.CE.30cBurovaite-Ca(Na,K)4Ca2(Ti,Nb)8(Si4O12)4(OH,O)8 · 12H2O
9.CE.45Komarovite(Ca,Mn)Nb2[O3|Si2O7] · 3.5H2O
17.8.1EpistoliteNa2(Nb,Ti)2(Si2O7)O2 · nH2O
17.8.2MurmaniteNa2Ti2(Si2O7)O2 · 2H2O
17.8.3PerraultiteBaNaMn42+Ti2 (Si2O7)2O2(OH)2F
17.8.4Niocalite(Ca,Nb)4(Si2O7)(O,OH,F)2
17.8.5MongoliteCa4Nb6Si5O24(OH)10 · nH2O
17.8.6FersmaniteCa4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3
17.8.7Nacareniobsite-(Ce)Na3Ca3(Ce,La,Nd)Nb(Si2O7)2OF3
17.8.8Nenadkevichite(Na,◻)8Nb4(Si4O12)2(O,OH)4 · 8H2O
17.8.10WöhleriteNaCa2(Zr,Nb)(Si2O7)(O,OH,F)2
17.8.11BelkoviteBa3(Nb,Ti)6(Si2O7)2O12
17.8.12BaotiteBa4(Ti,Nb)8Si4O28Cl
17.8.13Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
17.8.14Ilímaussite-(Ce)(Na,K)7-8(Ba,K)10Ce5(Nb,Ti)6(Si3O9)4(Si9O18)O6(O,OH)24
17.8.15Komarovite(Ca,Mn)Nb2[O3|Si2O7] · 3.5H2O
17.8.16Manganbelyankinite(Mn,Ca)(Ti,Nb)5O12 · 9H2O
17.8.17Niobophyllite(K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31
17.8.18Caesium-Kupletskite

Other Names for Natrokomarovite

Name in Other Languages:

Other Information

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 Natrokomarovite

Reference List:
Doklady Akademii Nauk SSSR (1979): 248: 443-447.

Balić-Žunić, T., Petersen, O.V., Bernhardt, H.J., and Micheelsen, H.I. (2002) The crystal structure and mineralogical description of a Na-dominant komarovite from the Ilímaussaq alkaline complex, South Greenland. Neues Jahrbuch für Mineralogie, Monatshefte (2002): 11: 497-514.

Internet Links for Natrokomarovite

Localities for Natrokomarovite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Greenland
 
  • Kujalleq
    • Narsaq
Balic-Zunic T, Petersen O V, Bernhardt H J, Micheelsen H I eues Jahrbuch fur Mineralogie, Monatshefte 2002 (2002) 497-514; Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
Petersen, O., Giester, G., Brandstätter, F., Niedermayr, G. (2002): Nabesite, a new mineral species from the Ilimaussaq alkaline complex, Canadian Mineralogist, Vol. 40, 173-181
Petersen, O.V., Giester, G., Brandstätter, F., Niedermayr, G. (2002): Nabesite, a new mineral species from the Ilimaussaq alkaline complex. Canadian Mineralogist. 40, 173-181
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • 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
New Data on Minerals M., 2004 Vol 39 pp 5-13
Mineral and/or Locality  
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