Paratsepinite-Na Mineral Data


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General Paratsepinite-Na Information

Help on Chemical  Formula: Chemical Formula: (Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O) n ~ 8
Help on Composition: Composition: Molecular Weight = 2,286.52 gm
   Potassium   1.20 %  K     1.44 % K2O
   Sodium      4.22 %  Na    5.69 % Na2O
   Strontium   8.05 %  Sr    9.52 % SrO
   Calcium     0.61 %  Ca    0.86 % CaO
   Titanium   12.56 %  Ti   20.96 % TiO2
   Niobium     8.13 %  Nb   11.63 % Nb2O5
   Silicon    19.65 %  Si   42.04 % SiO2
   Hydrogen    0.79 %  H     7.09 % H2O
   Oxygen     44.78 %  O
             ______        ______ 
             100.00 %       99.23 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 7(Na0.6)7(Sr0.3)7(K0.1)7(Ca0.05)8(Ti0.75)8(Nb0.25)4(Si4)4(O12)O6(OH)2·8(H2O)
Help on Environment: Environment: Labuntsovite group
Help on IMA Status: IMA Status: Proposed IMA 2003 (Dana # Added)
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals and Mineral Names (CNMMN)
Help on Synonym: Synonym: IMA2003-008
 

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Paratsepinite-Na Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0243:1:1.1124
Help on Cell Dimensions: Cell Dimensions: a = 14.596, b = 14.249, c = 15.852, Z = 3; beta = 117.27° V = 2,930.45 Den(Calc)= 3.89
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.09(1), 3.24(0.9), 3.11(0.8),3.15(0.8), 2.491(0.7), 2.54(0.7),
 

Physical Properties of Paratsepinite-Na

Help on Color: Color: Colorless.
Help on Diaphaniety: Diaphaniety: Transparent
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Paratsepinite-Na

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.297 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1789,KC= 0.2543
Help on Optical Data: Optical Data: Biaxial (+), a=1.657, b=1.666, g=1.765, bire=0.1080
 

Calculated Properties of Paratsepinite-Na

Help on Electron Density: Electron Density:

relectron=3.79 gm/cc
note: rParatsepinite-Na =3.89 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.03128
Boson Index = 0.96872
Help on Photoelectric: Photoelectric:

PEParatsepinite-Na = 23.63 barns/electron
U=PEParatsepinite-Na x relectron= 89.58 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 16.85 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Paratsepinite-Na - barely detectable

 

Paratsepinite-Na Classification

Help on  Dana Class: Dana Class: 60.1.3e.4 (60)Cyclosilicate Four-Membered Rings
  (60.1)as Titanosilicates
  (60.1.3e)Labuntsovite Group (Labuntsovite subgroup Monoclinic [C2/m])
 
60.1.3e.1 Labuntsovite-Mn! Na4K4(Ba,K)(Mn,Fe)1x(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O),n=10-12 I2/m 2/m
 
60.1.3e.2 Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m
 
60.1.3e.3 Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m
 
60.1.3e.4 Paratsepinite-Na ! (Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O)n~8 C 2/m 2/m
 
60.1.3e.5 Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m
Help on  Strunz Class: Strunz Class: VIII/EX.00-00 VIII - Silicates
  VIII/EX - Unclassified Strunz Cyklosilicates
  VIII/EX.00 - Labuntsovite Group
 

Other Paratsepinite-Na Information

Help on See Also: See Also: Links to other databases for Paratsepinite-Na :
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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Paratsepinite-Na

(Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O) n ~ 8
Dana No: 60.1.3e.4 Strunz No: VIII/EX.00-00
Locality:

 

Notes:

 

 
   
 
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