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Pyatenkoite-(Y)

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Formula:
Na5YTi[SiO3]6 · 6H2O
Colour:
Colourless
Lustre:
Vitreous
Hardness:
4 - 5
Crystal System:
Trigonal
Name:
For Yu. A. Pyatenko (1928-), prominent Russian crystal chemist.
Hilairite Group


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Classification of Pyatenkoite-(Y)Hide

Approved
9.DM.10

9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains

Physical Properties of Pyatenkoite-(Y)Hide

Vitreous
Transparency:
Transparent
Colour:
Colourless
Hardness:
4 - 5 on Mohs scale

Optical Data of Pyatenkoite-(Y)Hide

Type:
Uniaxial (-)
RI values:
nω = 1.612 nε = 1.607
Max Birefringence:
δ = 0.005
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Pyatenkoite-(Y)Hide

Formula:
Na5YTi[SiO3]6 · 6H2O
IMA Formula:
Na5YTiSi6O18 · 6H2O

Crystallography of Pyatenkoite-(Y)Hide

Crystal System:
Trigonal

Type Occurrence of Pyatenkoite-(Y)Hide

Synonyms of Pyatenkoite-(Y)Hide

Other Language Names for Pyatenkoite-(Y)Hide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Kentbrooksite3 photos of Pyatenkoite-(Y) associated with Kentbrooksite on mindat.org.
Tsepinite-Ca3 photos of Pyatenkoite-(Y) associated with Tsepinite-Ca on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DM.05StokesiteCaSn[Si3O9] · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.DM.10CalciohilairiteCaZr[SiO3]3 · 3H2OTrig.
9.DM.10HilairiteNa2Zr[SiO3]3 · 3H2OTrig.
9.DM.10KomkoviteBaZr[Si3O9] · 3H2OTrig.
9.DM.10Sazykinaite-(Y)Na5YZr[SiO3]6 · 6H2O
9.DM.15GaidonnayiteNa2Zr(Si3O9) · 2H2OOrth. mmm (2/m 2/m 2/m) : Pmna
9.DM.15GeorgechaoiteNaKZr[Si3O9] · 2H2OOrth. mm2
9.DM.20ChkaloviteNa2BeSi2O6Orth. mm2 : Fdd2
9.DM.25VlasoviteNa2ZrSi4O11Mon. 2/m : B2/b
9.DM.30RevditeNa16Si16O27(OH)26 · 28H2OMon. 2 : B2
9.DM.35ScheuchzeriteNa(Mn,Mg,Zn)9[VSi9O28(OH)](OH)3Tric. 1 : P1
9.DM.40TerskiteNa4ZrSi6O16 · 2H2OOrth.

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 Pyatenkoite-(Y)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1996): 125(4): 72-79.
Mineralogical Record: 28: 222-223.

Internet Links for Pyatenkoite-(Y)Hide

Localities for Pyatenkoite-(Y)Hide

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
 
  • Northern Region
    • Murmanskaya 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
Pekov, I. et al (2003): New Data on Minerals: 38: 20-33.
      • Lovozero Massif
Khomyakov A.P., Nechelyustov G.N., Rastsvetaeva R.K. (1996); Pekov I.V., Chukanov N.V., Kononkova N.N., Pushcharovsky D.Yu. (2003); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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