Senekevichite Mineral Data

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General Senekevichite Information

Help on Chemical  Formula: Chemical Formula: CsKNaCa2TiO[Si7O18(OH)]
Help on Composition: Composition: Molecular Weight = 817.63 gm
   Cesium     16.25 %  Cs   17.23 % Cs2O
   Potassium   4.78 %  K     5.76 % K2O
   Calcium     9.80 %  Ca   13.72 % CaO
   Titanium    5.86 %  Ti    9.77 % TiO2
   Silicon    24.04 %  Si   51.44 % SiO2
   Hydrogen    0.12 %  H     1.10 % H2O
   Oxygen     39.14 %  O
             ______        ______ 
             100.00 %       99.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CsKCa2TiOSi7O18(OH)
Help on Environment: Environment: Cs-dominant analogue of tinaksite
Help on IMA Status: IMA Status: Proposed IMA 2004 (Dana # Added)
Help on Locality: Locality: Dara-i-Pioz glacier, Tajikistan Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals and Mineral Names (CNMMN)
Help on Synonym: Synonym: IMA2004-017
 

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Senekevichite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8511:1:0.5765
Help on Cell Dimensions: Cell Dimensions: a = 10.4191, b = 12.2408, c = 7.0569, Z = 2; alpha = 90.857°, beta = 99.193°, gamma = 91.895° V = 887.88 Den(Calc)= 3.06
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.06(1), 3.14(0.21), 2.959(0.2),2.038(0.17), 3.25(0.16), 4.08(0.13), 3.33(0.11),
 

Optical Properties of Senekevichite

Help on Optical Data: Optical Data: NCalc= 1.64 - from Gladstone-Dale relationship (KC = 0.2097) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Senekevichite

Help on Electron Density: Electron Density:

relectron=2.96 gm/cc
note: rSenekevichite =3.06 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01912
Boson Index = 0.98088
Help on Photoelectric: Photoelectric:

PESenekevichite = 67.78 barns/electron
U=PESenekevichite x relectron= 200.41 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 66.67 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Senekevichite - barely detectable

 

Senekevichite Classification

Help on  Dana Class: Dana Class: 67.2.1.3 (67)Inosilicate Unbranched Chains with W>2
  (67.2)with W=5
  (67.2.1)Tinaksite group
 
67.2.1.1 Tinaksite K2Na(Ca,Mn)2(Ti,Fe)O[Si7O18(OH)] P1,P 1 Tri
 
67.2.1.2 Tokkoite K2Ca4[Si7O18(OH)](F,OH) P1 1
 
67.2.1.3 Senekevichite ! CsKNaCa2TiO[Si7O18(OH)] P1 1
Help on  Strunz Class: Strunz Class: VIII/FX.00-00 VIII - Silicates
  VIII/FX - Unclassified Strunz Inosilicates
  VIII/FX.00 - Tinaksite group
 

Other Senekevichite Information

Help on See Also: See Also: Links to other databases for Senekevichite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Senekevichite

CsKNaCa2TiO[Si7O18(OH)]
Dana No: 67.2.1.3 Strunz No: VIII/FX.00-00
Locality:

 

Notes:

 

 
   
 
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