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Paravinogradovite

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About ParavinogradoviteHide

Formula:
Na1-2(Ti,Fe3+)4(Si2O6)2(AlSi3O10)(OH)4 · H2O
Colour:
Colourless to white
Lustre:
Vitreous, Pearly
Hardness:
5
Specific Gravity:
2.77
Crystal System:
Triclinic
Name:
For its structural relation to vinogradovite. First described by Khomyakov (1990,1995) as a potential new species, designated as M48, a vinogradovite-like mineral. It was first collected by him in 1986 and by Pavel M. Kartashov in 1988 from the central part of the Khibina alkaline massif, Kola, Russia. Described as a new mineral by Khomyakov et al. (2003).
This page provides mineralogical data about Paravinogradovite.


Classification of ParavinogradoviteHide

Approved
Approval Year:
2002
First Published:
1990
9.DB.25

9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals

Physical Properties of ParavinogradoviteHide

Vitreous, Pearly
Colour:
Colourless to white
Streak:
white
Hardness:
Cleavage:
Perfect
on {001}
Density:
2.77 g/cm3 (Measured)    

Optical Data of ParavinogradoviteHide

Type:
Biaxial (-)
RI values:
nα = 1.707(2) nβ = 1.741(2) nγ = 1.755(2)
2V:
Measured: 64° (1), Calculated: 64°
Max Birefringence:
δ = 0.048
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Pleochroism:
Non-pleochroic
Comments:
with dispersion r > v

Chemical Properties of ParavinogradoviteHide

Formula:
Na1-2(Ti,Fe3+)4(Si2O6)2(AlSi3O10)(OH)4 · H2O
IMA Formula:
(Na,◻)2(Ti4+,Fe3+)4(Si2O6)2(Si3AlO10)(OH)4 · H2O

Crystallography of ParavinogradoviteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 5.253 Å, b = 8.741 Å, c = 12.95 Å
α = 70.46°, β = 78.47°, γ = 89.93°
Ratio:
a:b:c = 0.601 : 1 : 1.482
Unit Cell V:
547.68 ų (Calculated from Unit Cell)
Morphology:
slender to acicular prismatic crystals

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005880ParavinogradoviteKhomyakov A P, Kulikova I E, Sokolova E V, Hawthorne F C, Kartashov P M (2003) Paravinogradovite, (Na,_)2[(Ti,Fe)4{Si2O6}2{Si3AlO10}(OH)4]H2O, a new mineral species from the Khibina Alkaline Massif, Kola Penninsula, Russia: Description and crystal structure The Canadian Mineralogist 41 989-10022003Khibina Alkaline Massif, Kola Penninsula, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.9 Å(60)
5.88 Å(65)
3.18 Å(100)

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of ParavinogradoviteHide

Synonyms of ParavinogradoviteHide

Other Language Names for ParavinogradoviteHide

Simplified Chinese:副白钛硅钠石
Traditional Chinese:副白鈦矽鈉石

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Paravinogradovite associated with MicroclineK(AlSi3O8)

Related Minerals - Nickel-Strunz GroupingHide

9.DB.05BalipholiteBaLiMg2Al3(Si2O6)2(OH)4Orth.
9.DB.05CarpholiteMn2+Al2(Si2O6)(OH)4Orth.
9.DB.05Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05Magnesiocarpholite(Mg,Fe2+)Al2(Si2O6)(OH)4Orth.
9.DB.05Potassiccarpholite(K,◻)(Li,Mn2+)2Al4(Si2O6)2(OH,F)8Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05VanadiocarpholiteMn2+V3+Al(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.10LorenzeniteNa2Ti2(Si2O6)O3Orth. mmm (2/m 2/m 2/m) : Pbcn
9.DB.15LintisiteLiNa3Ti2(Si2O6)2O2 · 2H2OMon.
9.DB.15PunkaruaiviteLiTi2(HSi4O12)(OH)2 · H2OMon. 2/m : B2/b
9.DB.17EliseeviteLiNa1.5Ti2(H1.5Si4O12)O2 · 2H2OMon. 2/m : B2/b
9.DB.20KukisvumiteNa6ZnTi4(Si8O24)O4 · 4H2OOrth.
9.DB.20ManganokukisvumiteNa6MnTi4(Si8O24)O4 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pccn
9.DB.25VinogradoviteNa4Ti4(Si2O6)2[(Si,Al)4O10]O4 · (H2O,Na,K)3Mon. 2/m : B2/b
9.DB.30NchwaningiteMn2+2(SiO3)(OH)2 · H2OOrth.
9.DB.35PlancheiteCu8(Si8O22)(OH)4 · H2OOrth. mmm (2/m 2/m 2/m)
9.DB.40ShattuckiteCu5(Si2O6)2(OH)2Orth. mmm (2/m 2/m 2/m)
9.DB.40UM2005-31-SiO:CuHCu11(SiO4)(OH)18 · 9H2O (?)
9.DB.45Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]Mon.
9.DB.50CapranicaiteKCaNaAl4B4Si2O18Mon. 2/m : P21/m

Fluorescence of ParavinogradoviteHide

weak yellow-green fluorescence in short-wave UV light

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 ParavinogradoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Khomyakov, A. P. (1990) Mineralogy of Hyperagpaitic Alkaline rocks. Nauka, Moscow, Russia (in Russian)[as a vinogradovite-like mineral]
Khomyakov, A. P. (1995) Mineralogy of Hyperagpaitic Alkaline rocks. Clarendon Press, Russia, Oxford, U.K. [as a vinogradovite-like mineral]
Khomyakov A.P., Kulikova I.E., Sokolova E.V., Hawtorne F.C., Kartashov P.M. (2003): Paravinogradovite, (Na,◻)2[(Ti4+,Fe3+)4{Si2O6}2{Si3AlO10}(OH)4].H2O, a new mineral species from the Khibina alkaline massif, Kola peninsula, Russia: description and crystal structure. Canadian Mineralogist, 41 (5), 989-1002.

Internet Links for ParavinogradoviteHide

Localities for ParavinogradoviteHide

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
    • Khibiny Massif
      • Kukisvumchorr Mt
Khomyakov A.P., Kulikova I.E., Sokolova E.V., Hawtorne F.C., Kartashov P.M. (2003) Paravinogradovite, (Na,[])2[(Ti4+,Fe3+)4{Si2O6}2{Si3AlO10}(OH)4]*H2O, a new mineral species from the Khibina alkaline massif, Kola peninsula, Russia: description and crystal structure, - Canadian Mineralogist, V.41, №5, pp. 989-1002.; Lapis 29(1), 47 (2004)
 
Mineral and/or Locality  
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