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Komarovite

A valid IMA mineral species
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09774390014948000512044.jpg
Komarovite

Natrolite Stock, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
06074980016424086299303.jpg
Komarovite

Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
00283180016424086305687.jpg
Komarovite

Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
05192810014947755735888.jpg
Komarovite

Natrolite Stock, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
05622680015560142511672.jpg
Komarovite

Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
02373230016298234007204.jpg
Komarovite

Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
09774390014948000512044.jpg
Komarovite

Natrolite Stock, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
05622680015560142511672.jpg
Komarovite

Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
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About KomaroviteHide

05335900015206145144421.jpg
Vladimir M. Komarov
Formula:
(Ca,Mn)(Nb,Ti)2[Si2O7](O,F)3 · 3.5H2O
Colour:
pale rose to light yellow
Lustre:
Dull
Hardness:
1½ - 2
Specific Gravity:
3.0
Crystal System:
Orthorhombic
Name:
Named in honor of Vladimir Mikhaylovich Komarov (16 March 1927, Moscow, Russia - 24 April 1967), Soviet test pilot, engineer, and cosmonaut. He was the 14th person in space and the first cosmonaut to travel twice into space. He died on re-entry due to a failed parachute.
See also natrokomarovite.


Unique IdentifiersHide

Mindat ID:
2245
Long-form identifier:
mindat:1:1:2245:9
GUID
(UUID V4):
85a1e7c0-525d-406c-a6d6-fde443405ea2

IMA Classification of KomaroviteHide

IMA status:
Approved
IMA Formula:
(Ca,Sr,Na)6-x(Nb,Ti)6(Si4O12)(O,OH,F)16 · nH2O
Approval year:
1971
First published:
1971
Type description reference:
Portnov, A.M., Krivokoneva, G.K., Stolyarova, T.I. (1971) Komarovite, a new niobosilicate of calcium and manganese. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 100: 599-602.

Classification of KomaroviteHide

Strunz-mindat (2023):
9.CE.45

9 : SILICATES (Germanates)
C : Cyclosilicates
E : [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions
Dana 8th ed.:
56.2.4.12

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
Hey's CIM Ref.:
17.8.15

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
KmvIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KomaroviteHide

Lustre:
Dull
Transparency:
Transparent, Translucent
Colour:
pale rose to light yellow
Streak:
white
Hardness:
1½ - 2 on Mohs scale
Cleavage:
Imperfect/Fair
Perfect on {010}, fair on {001}.
Fracture:
None observed
Density:
3.0 g/cm3 (Measured)    3.16(20) g/cm3 (Calculated)

Optical Data of KomaroviteHide

Type:
Biaxial (+)
RI values:
nα = 1.750 - 1.809 nβ = 1.766 - 1.876 nγ = 1.850 - 1.912
2V:
Measured: 48° to 72°
Max Birefringence:
δ = 0.100 - 0.103
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v marked

Chemistry of KomaroviteHide

Mindat Formula:
(Ca,Mn)(Nb,Ti)2[Si2O7](O,F)3 · 3.5H2O
Elements listed:
Ca, F, H, Mn, Nb, O, Si, Ti - search for minerals with similar chemistry
Common Impurities:
Ti,Al,Fe,Mn,Na,K

Crystallography of KomaroviteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cmmm
Setting:
Cmmm
Cell Parameters:
a = 21.3 Å, b = 14 Å, c = 17.19 Å
Ratio:
a:b:c = 1.521 : 1 : 1.228
Unit Cell V:
5,126.06 ų (Calculated from Unit Cell)
Z:
18
Morphology:
Platy, foliated, massive.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
12.2 Å(70)
6.35 Å(30)
5.44 Å(30)
3.16 Å(100)
3.118 Å(40)
2.740 Å(40)
2.715 Å(30)
1.783 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of KomaroviteHide

Type Locality:
ⓘ Natrolite Stock (Pegmatite No. 61), Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 73302.
Geological Setting of Type Material:
differentiated alkalic massif.
Associated Minerals at Type Locality:
NatroliteAlbite
Reference:
Portnov, A.M., Krivokoneva, G.K., Stolyarova, T.I. (1971) Komarovite, a new niobosilicate of calcium and manganese. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 100: 599-602.
Download:
http://rruff.info/rruff_1.0/uploads/ZVMO100_599.pdf

Synonyms of KomaroviteHide

Other Language Names for KomaroviteHide

Simplified Chinese:硅铌钙石
Spanish:Komarovita

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Komarovite associated with Rhabdophane-(Ce)Ce(PO4) · 0.6H2O
2 photos of Komarovite associated with NatroliteNa2Al2Si3O10 · 2H2O
2 photos of Komarovite associated with MicroclineK(AlSi3O8)
1 photo of Komarovite associated with AlbiteNa(AlSi3O8)

Related Minerals - Strunz-mindat GroupingHide

9.CE.Dutkevichite-(Ce)NaZnBa2Ce2Ti2Si8O26F · H2OOrth. mm2 : Ama2
9.CE.NiobobaotiteBa4(Ti2.5Fe2+1.5)Nb4Si4O28ClTet. 4/m : I41/a
9.CE.05PapagoiteCaCu[H3AlSi2O9]Mon. 2/m : B2/m
9.CE.10VerplanckiteBa4Mn2+2Si4O12(OH,H2O)3Cl3Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
9.CE.15BaotiteBa4(Ti,Nb,W)8O16(SiO3)4ClTet. 4/m : I41/a
9.CE.20NagashimaliteBa4(V,Ti)4B2Si8O27(O,OH)2ClOrth. mmm (2/m 2/m 2/m) : Pmmn
9.CE.20TaramelliteBa4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2ClxOrth. mmm (2/m 2/m 2/m) : Pmmn
9.CE.20TitantaramelliteBa4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2ClxOrth. mmm (2/m 2/m 2/m)
9.CE.25Bario-orthojoaquinite(Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2OOrth.
9.CE.25Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2OOrth. mm2 : Ama2
9.CE.25Joaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2OMon. 2 : B2
9.CE.25Orthojoaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2OOrth.
9.CE.25StrontiojoaquiniteSr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2OMon.
9.CE.25Strontio-orthojoaquinite(Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2OOrth.
9.CE.25Orthojoaquinite-(La)NaBa2La2Fe2+Ti2[Si4O12]2O2(O,OH) · H2OOrth. mmm (2/m 2/m 2/m)
9.CE.30aUnnamed (Ca-Na-ordered analogue of Korobitsynite)(Ca,Na)2(Ti,Nb)2(Si4O12)(OH,O)2 · 3-4H2OOrth. 2 2 2 : P21 21 2
9.CE.30eLabuntsovite-MnNa4K4(Ba,K)2Mn2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10-12H2OMon. 2/m : B2/m
9.CE.30aNenadkevichite(Na,◻)8Nb4(Si4O12)2(O,OH)4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pbam
9.CE.30dLemmleinite-KK2(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2OOrth.
9.CE.30aKorobitsyniteNa2(Ti,Nb)2(Si4O12)(OH,O)2 · 3-4H2OOrth. mmm (2/m 2/m 2/m) : Pbam
9.CE.30cKuzmenkoite-MnK2Mn2+(Ti,Nb)4(Si4O12)2(OH,O)4 · 5-6H2OMon. 2/m : B2/m
9.CE.30bVuoriyarvite-KK2(Nb,Ti)2(Si4O12)(O,OH)2 · 4H2OMon. m : Bm
9.CE.30bTsepinite-NaNa2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2OMon. m : Bm
9.CE.30cKarupmøllerite-Ca(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2OMon. 2/m : B2/m
9.CE.30eLabuntsovite-MgNa4K4(Ba,K)2Mg(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2OMon. 2/m : B2/m
9.CE.30eLabuntsovite-FeNa4K4(Ba,K)2Fe2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2OMon. 2/m : B2/m
9.CE.30dLemmleinite-BaNa2K2Ba(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2OMon. 2/m : B2/m
9.CE.30cGjerdingenite-FeK2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30hNeskevaaraite-FeK3Na2Fe2+(Ti,Nb)4(Si4O12)2(O,OH)4 · 5-6 H2OMon. m : Bm
9.CE.30bTsepinite-KK2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2OMon. m : Bm
9.CE.30bParatsepinite-BaBa4(Ti,Nb)8(Si4O12)4(OH,O)8 · 8H2OMon. 2/m : B2/m
9.CE.30bTsepinite-CaCa(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2OMon. 2/m : B2/m
9.CE.30hAlsakharovite-ZnNaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2OMon. m : Bm
9.CE.30cGjerdingenite-MnK2Mn2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30cLepkhenelmite-Zn(Ba,K)2Zn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2OMon. m : Bm
9.CE.30bTsepinite-SrSr(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2OMon. m : Bm
9.CE.30bParatsepinite-Na(Na,Sr,K,Ca)7(Ti,Nb)8(Si4O12)4(O,OH)8 · nH2O n ~ 8Mon. 2/m : B2/m
9.CE.30fParalabuntsovite-MgNa8K8Mg4Ti16(Si4O12)8(OH,O)16 · 20-24H2OMon. 2/m : B2/m
9.CE.30cGjerdingenite-CaK2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30cGjerdingenite-NaK2Na(Nb,Ti)4(Si4O12)2(OH,O)4 · 5H2OMon. 2/m : B2/m
9.CE.30hGutkovaite-MnK2CaMn(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2OMon. m : Bm
9.CE.30cKuzmenkoite-ZnK2Zn(Ti,Nb)4(Si4O12)2(OH,O)4 · 6-8H2OMon. m : Bm
9.CE.30gOrganovaite-MnK2Mn(Nb,Ti)4(Si4O12)2(O,OH)4 · 5-7H2OMon. 2/m : B2/m
9.CE.30gOrganovaite-ZnK2Zn(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2OMon. 2/m : B2/m
9.CE.30gParakuzmenkoite-Fe(K,Ba)4Fe(Ti,Nb)8(Si4O12)4(O,OH)8 · 14H2OMon. 2/m : B2/m
9.CE.30cBurovaite-Ca(Na,K)4Ca2(Ti,Nb)8(Si4O12)4(OH,O)8 · 12H2OMon. 2/m : B2/m
9.CE.45Natrokomarovite(Na,Ca,H)2Nb2Si2O10(OH,F)2 · H2OOrth.

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.

Internet Links for KomaroviteHide

References for KomaroviteHide

Localities for KomaroviteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Greenland
 
  • Kujalleq
Sørensen, Henning - Ed. (2001) The Ilímaussaq alkaline complex, South Greenland: status of mineralogical research with new results. Geology of Greenland Survey Bulletin 190. GEUS
Balić-Žunić T, Petersen O V, Bernhardt H J, Micheelsen H I (2002) The crystal structure and mineralogical description of a Na-dominant komarovite from Ilímaussaq alkaline complex, South Greenland. Neues Jahrbuch für Mineralogie, Monatshefte 2002, 497-514.
Russia
 
  • 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
Mineral News, 27 (2011), #8, 12.
    • Lovozersky District
Arzamastsev, Andrei., Yakovenchuk, Victor., Pakhomovsky, Yakov., Ivanyuk, Gregory (2008) Guidebook for 33rd International Geological Congress Excursion - The Khibina and Lovozero alkaline massifs:Geology and unique mineralization Vol. 47. IUGS - International Union of Geological Sciences.
Portnov, A.M., Krivokoneva, G.K., Stolyarova, T.I. (1971) Komarovite, a new niobosilicate of calcium and manganese. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 100: 599-602.
Fleischer, M. (1972) New mineral names. American Mineralogist: 57: 1311-1317.
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
New Data on Minerals M., (2004) 39, 5-13.
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