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Yegorovite Mineral Data

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General Yegorovite Information

Help on Chemical  Formula: Chemical Formula: Na4[Si2O4(OH)2]2•7H2O
Help on Composition: Composition: Molecular Weight = 526.43 gm
   Sodium    17.47 %  Na   23.55 % Na2O
   Silicon   21.34 %  Si   45.65 % SiO2
   Hydrogen   3.45 %  H    30.80 % H2O
   Oxygen    57.75 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4•7(H2O)2(Si2O4)2(OH)2
Help on Environment: Environment: New structure type
Help on IMA Status: IMA Status: Proposed IMA 2008 (Dana # Added)
Help on Locality: Locality: Palitra ("Palette") pegmatite, Kedykverpakhk area of the Karnasurt underground loparite mine, Kedykverpakhk Mountain, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Yuriy Klavdievich Yegorov-Tismeno (1938-2007), Russian crystal chemist.
Help on Synonym: Synonym: IMA2008-033
 

Yegorovite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7964:1:1.2015
Help on Cell Dimensions: Cell Dimensions: a = 9.8744, b = 12.3981, c = 14.8973, Z = 6; beta = 104.675° V = 1,764.29 Den(Calc)= 2.97
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.116(1), 6.21(0.72), 7.21(0.7),4.003(0.49), 3.734(0.46), 4.696(0.44), 2.463(0.38), 2.359(0.3),
 

Optical Properties of Yegorovite

Help on Optical Data: Optical Data: NCalc= 1.73 - from Gladstone-Dale relationship (KC = 0.2444) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Yegorovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.05 gm/cc
note: Specific Gravity of Yegorovite =2.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEYegorovite = 1.17 barns/electron
U=PEYegorovite x rElectron Density= 3.57 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Yegorovite is Not Radioactive
 

Yegorovite Classification

Help on  Dana Class: Dana Class: 65.01.09.01 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.01)with chains P=2
  (65.01.09)Dana Group
 
65.01.09.01 Yegorovite! Na4[Si2O4(OH)2]2•7H2O P 21/c 2/m
Help on  Strunz Class: Strunz Class: 09.DX.00 09 - SILICATES (Germanates)
  09.D - Unclassified Strunz Inosilicates
  09.DX -Unknown
 
09.DX.00 Hypersthene? (Mg,Fe)2Si2O6 2/m 2/m 2/m
 
09.DX.00 Plumalsite* Pb4Al2(SiO3)7(?) Unk Ortho
 
09.DX.00 IMA2008-070 NaLi2(Fe2Al2Li)(Si6Al2)O22F2 C 2/m 2/m
 
09.DX.00 IMA2007-015 K(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
 
09.DX.00 Tanohataite! LiMn2Si3O8(OH) P1 1
 
09.DX.00 Punkaruaivite! Li{Ti2(OH)2[Si4O11(OH)]}•H2O C 2/c 2/m
 
09.DX.00 Yegorovite! Na4[Si2O4(OH)2]2•7H2O P 21/c 2/m
 
09.DX.00 Kushiroite CaAl2SiO6 C 2/c 2/m
 
09.DX.00 Grossmanite CaTiAlSiO6 C 2/m 2/m
 
09.DX.00 IMA2009-009 KNa2Li(Mg,Fe)2Ti2Si8O24 C 2/m 2/m
 
09.DX.00 IMA2009-010 [Ba6(PO4)2(CO3)][Fe7(OH)4Fe2O2(SiO3)8] P1 1
 
09.DX.00 IMA2009-012 NaNa2(Mg2Al2Li)Si8O22F2 C 2/m 2/m
 

Other Yegorovite Information

Help on See Also: See Also: Links to other databases for Yegorovite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Yegorovite Specimen Label here :

Yegorovite

Na4[Si2O4(OH)2]2•7H2O
Dana No: 65.01.09.01 Strunz No: 09.DX.00
Locality:

 

Notes:

 

 
   
 


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