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Sobolevite

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About SoboleviteHide

05117240015211938955006.jpg
Vladimir S. Sobolev
Formula:
Na13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3
Colour:
brown
Lustre:
Resinous, Pearly, Metallic
Hardness:
4½ - 5
Specific Gravity:
3.03
Crystal System:
Monoclinic
Name:
Named in honor of Vladimir Stepanovich Sobolev (Владимира Степановича Соболева) (17 May [30 May] 1908, Lugansk, Russian Empire - 1 September 1982, Moscow, USSR), Academician of the USSR Academy of Sciences and Director of the A. E. Fersman Mineralogical Museum, Moscow (1980 to 1982). He was a petrologist, studied the mineralogy of silicates, magmatism and metamorphism of rocks, and the mineralogy and petrology of the Siberian Platform.

Not to be confused with sobolevskite
This page provides mineralogical data about Sobolevite.


Classification of SoboleviteHide

Approved
Approval Year:
1982
8/C.14-130
9.BE.37

9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
56.4.1.4

56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
4 : Si2O7 Groups and O, OH, F, and H2O with [Si2O7] with other cation groups
17.6.9

17 : Silicates Containing other Anions
6 : Silicates with phosphate

Physical Properties of SoboleviteHide

Resinous, Pearly, Metallic
Comment:
pearly on (001)
Colour:
brown
Hardness:
4½ - 5 on Mohs scale
Hardness:
VHN100=342 - 712 - Vickers
Cleavage:
Perfect
(001) perfect, (110) distinct.
Density:
3.03 g/cm3 (Measured)    3.00 g/cm3 (Calculated)

Optical Data of SoboleviteHide

Type:
Biaxial (-)
RI values:
nα = 1.627 nβ = 1.686 nγ = 1.690
2V:
Measured: 25° to 33°, Calculated: 28°
Max Birefringence:
δ = 0.063
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v strong
Pleochroism:
Visible
Comments:
X nearly colorless, Y and Z yellowish-brown,

Chemical Properties of SoboleviteHide

Formula:
Na13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3
IMA Formula:
Na6(Na2Ca)(NaCaMn)Na2Ti2Na2(TiMn)(Si2O7)2(PO4)4O2(OF)F2
Common Impurities:
Fe,Nb

Crystallography of SoboleviteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Pb
Setting:
Pc
Cell Parameters:
a = 7.0755(5) Å, b = 5.4106(4) Å, c = 40.623(3) Å
α = 90°, β = 94.42(1)°, γ = 90°
Ratio:
a:b:c = 1.308 : 1 : 7.508
Unit Cell V:
1552.8 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.913Å(50)
2.896Å(100)
2.691Å(70)
1.671Å(50)

Type Occurrence of SoboleviteHide

General Appearance of Type Material:
platy masses up to 5 mm wide, flattened on (001)
Place of Conservation of Type Material:
Fersman Museum
Geological Setting of Type Material:
alkalai pegmatite
Associated Minerals at Type Locality:

Synonyms of SoboleviteHide

Other Language Names for SoboleviteHide

Relationship of Sobolevite to other SpeciesHide

Other Members of this group:
BetalomonosoviteNa64Ti4(Si2O7)2[PO3(OH)][PO2(OH)2]O2(OF)Tric. 1 : P1
Calciomurmanite(Na,☐)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4Tric. 1 : P1
KolskyiteCaNa2Ti4(Si2O7)2O4(H2O)7Tric. 1 : P1
LomonosoviteNa5Ti2(Si2O7)(PO4)O2Tric.
MurmaniteNa2Ti2(Si2O7)O2 · 2H2OTric.
QuadruphiteNa14Ca2Ti4(Si2O7)2(PO4)2O2FTric.
SchülleriteBa2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4Tric. 1 : P1
Selivanovaite(Na,Ca)3(Ti,Fe)5[Si4O18(OH)3]·7H2OTric. 1 : P1
VigrishiniteNaZnTi4(Si2O7)2O3(OH)(H2O)4Tric. 1 : P1

Related Minerals - Nickel-Strunz GroupingHide

9.BE.02Wadsleyite(Mg,Fe2+)2(SiO4)Orth.
9.BE.05HennomartiniteSrMn3+2(Si2O7)(OH)2 · H2OOrth.
9.BE.05LawsoniteCaAl2(Si2O7)(OH)2 · H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
9.BE.05NoelbensoniteBaMn3+2(Si2O7)(OH)2 · H2OOrth.
9.BE.05ItoigawaiteSrAl2(Si2O7)(OH)2 · H2OOrth.
9.BE.07IlvaiteCaFe3+Fe2+2(Si2O7)O(OH)Orth. mmm (2/m 2/m 2/m)
9.BE.07ManganilvaiteCaFe2+Fe3+Mn2+(Si2O7)O(OH)Mon. 2/m : P21/b
9.BE.10SuoluniteCa2(H2Si2O7) · H2OOrth.
9.BE.12JaffeiteCa6(Si2O7)(OH)6Trig. 3 : P3
9.BE.15FresnoiteBa2Ti(Si2O7)OTet. 4mm : P4bm
9.BE.17BaghdaditeCa3(Zr,Ti)(Si2O7)O2Mon.
9.BE.17BurpaliteNa2CaZr(Si2O7)F2Mon.
9.BE.17CuspidineCa4(Si2O7)(F,OH)2Mon. 2/m : P21/b
9.BE.17Hiortdahlite(Na,Ca)2Ca4Zr(Mn,Ti,Fe)(Si2O7)2(F,O)4Tric.
9.BE.17Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m
9.BE.17Låvenite(Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2Mon. 2/m : P21/b
9.BE.17Niocalite(Ca,Nb)4(Si2O7)(O,OH,F)2Mon.
9.BE.17NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OFMon. 2/m : P21/b
9.BE.17WöhleriteNaCa2(Zr,Nb)(Si2O7)(O,OH,F)2Mon. 2 : P21
9.BE.17Hiortdahlite INa4Ca8Zr2(Nb,Mn,Ti,Fe,Mg,Al)2(Si2O7)4O3F5
9.BE.17MarianoiteNa2Ca4(Nb,Zr)2(Si2O7)2(O,F)4Mon. 2 : P21
9.BE.20Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.50.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/b
9.BE.20Nacareniobsite-(Ce)NbNa3Ca3(Ce,REE )(Si2O7)2OF3Mon.
9.BE.22GötzeniteNaCa6Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6Tric. 1 : P1
9.BE.22KochiteNa3Ca2MnZrTi(Si2O7)2OF3Tric. 1 : P1
9.BE.23DovyreniteCa6Zr(Si2O7)2(OH)4Orth. mmm (2/m 2/m 2/m) : Pnnm
9.BE.25Barytolamprophyllite(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)Mon.
9.BE.25EricssoniteBaMn2+2Fe3+(Si2O7)O(OH)Mon. 2/m : B2/m
9.BE.25Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2Mon.
9.BE.25Ericssonite-2OBaMn2+2Fe3+(Si2O7)O(OH)Orth.
9.BE.25SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2Mon.
9.BE.25NabalamprophylliteNa3(Ba,Na)2Ti3(Si2O7)2O2(OH,F)2Mon. 2/m
9.BE.25GrenmariteNa4MnZr3(Si2O7)2O2F2Mon. 2/m : P2/b
9.BE.25SchülleriteBa2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4Tric. 1 : P1
9.BE.25LileyiteBa2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25EmmerichiteBa2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25Fluorbarytolamprophyllite(Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2][Ti2(Si2O7)2O2]Mon. 2/m : B2/m
9.BE.27MurmaniteNa2Ti2(Si2O7)O2 · 2H2OTric.
9.BE.30EpistoliteNa2(Nb,Ti)2(Si2O7)O2 · nH2OTric.
9.BE.32LomonosoviteNa5Ti2(Si2O7)(PO4)O2Tric.
9.BE.35VuonnemiteNa11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH)Tric.
9.BE.40InneliteNa2CaBa4Ti3(Si2O7)2(SO4)2O4Tric. 1 : P1
9.BE.40PhosphoinneliteNa3Ba4Ti3(Si2O7)2(PO4,SO4)2O2FTric.
9.BE.42YoshimuraiteBa2Mn2Ti(Si2O7)(PO4)O(OH)Tric. 1 : P1
9.BE.45QuadruphiteNa14Ca2Ti4(Si2O7)2(PO4)2O2FTric.
9.BE.47PolyphiteNa5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2Tric. 1 : P1
9.BE.50BornemaniteNa6BaTi2Nb(Si2O7)2(PO4)O2(OH)F Tric. 1 : P1
9.BE.50ShkatulkaliteNa5(Nb1−xTix)2(Ti1−yMn2+y)[Si2O7]2O2(OH)2·nH2O (x + y = 0.5; n <= 10)Mon. 2/m : P2/m
9.BE.55BafertisiteBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2Tric.
9.BE.55HejtmaniteBa2(Mn2+,Fe2+)4Ti2(Si2O7)2O2(OH)2F2Tric. 1
9.BE.55Bykovaite(Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2OMon. 2/m
9.BE.55Nechelyustovite(Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2OMon. 2/m : B2/m
9.BE.60Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2OMon.
9.BE.65BusseniteNa2Ba2Fe2+Ti(Si2O7)(CO3)(OH)3FTric. 1 : P1
9.BE.67JinshajiangiteBaNaFe2+4Ti2(Si2O7)2O2(OH)2FTric. 1 : P1
9.BE.67PerraultiteBaNaMn2+4Ti2(Si2O7)2O2(OH)2FMon. 2/m : B2/m
9.BE.67SurkhobiteNaCaBa2Mn8Ti4(Si2O7)4O5F5Mon. 2 : B2
9.BE.70Karnasurtite-(Ce)(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2OAmor.
9.BE.70Perrierite-(Ce)Ce4MgFe3+2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8Mon.
9.BE.70Chevkinite-(Ce)(Ce,La,Ca,Th)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Polyakovite-(Ce)(Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70RengeiteSr4ZrTi4(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70MatsubaraiteSr4Ti5(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Dingdaohengite-(Ce)(Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe2+)2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Maoniupingite-(Ce)(Ce,Ca)4(Fe3+,Ti,Fe2+,◻)(Ti,Fe3+,Fe2+,Nb)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70Perrierite-(La)(La,Ce,Ca)4(Fe,Mn2+,Mg)Fe3+2(Ti,Fe3+)2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70UKI-2008-(SiO:SrTiZr)Sr4ZrTi4(Si2O7)2O8Orth. mmm (2/m 2/m 2/m) : Pbca
9.BE.70Hezuolinite(Sr,REE)4Zr(Ti,Fe3+)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.72FersmaniteCa4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3Tric.
9.BE.75BelkoviteBa3(Nb,Ti)6(Si2O7)2O12Hex.
9.BE.77NasonitePb6Ca4(Si2O7)3Cl2Hex.
9.BE.80KentrolitePb2Mn3+2(Si2O7)O2Orth. mmm (2/m 2/m 2/m) : Pbcm
9.BE.80MelanotekitePb2Fe3+2(Si2O7)O2Orth. 2 2 2 : C2 2 21
9.BE.82TilleyiteCa5(Si2O7)(CO3)2Mon.
9.BE.85KillalaiteCa6.4(H0.6Si2O7)2(OH)2Mon.
9.BE.87Stavelotite-(La)(La,Nd,Ca)3Mn2+3Cu(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30Trig. 3 : P31
9.BE.90Biraite-(Ce)Ce2Fe2+(Si2O7)(CO3)Mon. 2/m : P21/b
9.BE.92Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)Trig. 3m : R3m
9.BE.95BatisiviteBaV3+8Ti6(Si2O7)O22Tric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide

56.4.1.1LomonosoviteNa5Ti2(Si2O7)(PO4)O2Tric.
56.4.1.2PolyphiteNa5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2Tric. 1 : P1
56.4.1.3QuadruphiteNa14Ca2Ti4(Si2O7)2(PO4)2O2FTric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.6.1NagelschmidtiteCa7(SiO4)2(PO4)2Hex. 6 : P61
17.6.2PerhamiteCa3Al7.7Si3P4O23.5(OH)14.1 · 8H2OTrig. 3m (3 2/m) : P3m1
17.6.3Viséite
17.6.4PhosinaiteNa13Ca2(Ce,La,Th,Nd,Pr)(Si4O12)(PO4)4
17.6.5ClinophosinaiteNa12(Ca,Sr)4(Si4O12)(PO4)4Mon.
17.6.6Karnasurtite-(Ce)(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2OAmor.
17.6.7LomonosoviteNa5Ti2(Si2O7)(PO4)O2Tric.
17.6.8BornemaniteNa6BaTi2Nb(Si2O7)2(PO4)O2(OH)F Tric. 1 : P1
17.6.10Laplandite-(Ce)Na4CeTiPO4Si7O18 · 5H2OOrth. mmm (2/m 2/m 2/m) : Pmmm
17.6.11 VunonnemiteNa5TiNb3Si6O25F2 · 2Na3PO4
17.6.12Saryarkite-(Y)Ca(Y,Th)Al5(SiO4)2(PO4,SO4)2(OH)7 · 6H2OTet. 4 2 2
17.6.13Steenstrupine-(Ce)Na14Mn2+2(Fe3+,Mn3+)2Ce6(Zr,Th)(Si6O18)2(PO4)6(HPO4)(OH)2 · 2H2OTrig.
17.6.14WaylanditeBiAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
17.6.15Britholite-(Ce)(Ce,Ca)5(SiO4)3OHHex. 6/m : P63/m
17.6.16Britholite-(Y)(Y,Ca)5(SiO4)3OHHex. 6/m : P63/m
17.6.17EylettersiteTh0.75Al3(PO4)2(OH)6Trig.

Fluorescence of SoboleviteHide

Other InformationHide

Notes:
Readily decomposed by cold 10% HCl.
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 SoboleviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Khomyakov, A.P., Kurova, T.A., and Chistyakova, N.I. (1983) Sobolevite Na14Ca2MnTi3P4Si4O34 - a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva (1983): 112: 456-461 (in Russian).
Dunn, P.J., Fleischer, M., Francis, C.A., Langley, R.H., Kissin, S.A., Shigley, J.E., Vanko, D.A., Zilczer, J.A. (1984) New mineral names. American Mineralogist: 69: 810-815.
Doklady Akademiia Nauk, SSSR (USSR) (1988): 302: 1112 (in Russian).
Sokolova, E., Egorov-Tismenko, Yu.K., Khomyakov, A.P. (1988) Crystal structure of sobolevite. Soviet Physics – Doklady: 33: 711-714.
Jambor, J.L., Grew, E.S. (1991) New mineral names. American Mineralogist: 76: 299-305.
Canadian Mineralogist (2002): 40: 377.
Sokolova, E., Hawthorne, F.C., Khomyakov, A.P. (2005) Polyphite and sobolevite: revision of their crystal structures. Canadian Mineralogist: 43: 1527-1544.
Sokolova, E. (2006) From structure topology to chemical composition. I. Structural hierarchy and stereochemistry in titanium disilicate minerals. The Canadian Mineralogist: 44: 1273-1330.
Sokolova, E., Camara, F. (2017): The seidozerite supergroup of TS-block minerals: nomenclature and classification, with change of the following names: rinkite to rinkite-(Ce), mosandrite to mosandrite-(Ce), hainite to hainite-(Y) and innelite-1T to innelite-1A. Mineralogical Magazine: 81: 1457–1484.

Internet Links for SoboleviteHide

Localities for SoboleviteHide

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.
Russia (TL)
 
  • Murmansk Oblast
    • Lovozersky District
[World of Stones 95:5-6, p64]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Pakhomovsky, Y. A., Ivanyuk, G. Y., & Yakovenchuk, V. N. (2014). Loparite-(Ce) in rocks of the Lovozero layered complex at Mt. Karnasurt and Mt. Kedykvyrpakhk. Geology of Ore Deposits, 56(8), 685-698.
 
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