Cryptophyllite Mineral Data

Cryptophyllite Mineral Data
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General Cryptophyllite Information

Help on Chemical Formula: Chemical Formula: K2Ca[Si4O10]•5H2O
Help on Composition: Composition: Molecular Weight = 480.69 gm
   Potassium  16.27 %  K    19.60 % K2O
   Calcium     8.34 %  Ca   11.67 % CaO
   Silicon    23.37 %  Si   50.00 % SiO2
   Hydrogen    2.10 %  H    18.74 % H2O
   Oxygen     49.93 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2CaSi4O10•5(H2O)
Help on Environment: Environment: New structure type
Help on IMA Status: IMA Status: Proposed IMA 2009
Help on Locality: Locality: Tsentral’nyi mine, Khibiny alkaline complex, Kola Peninsula, Russia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals, Nomenclature and Classification (CNMNC)
Help on Synonym: Synonym: IMA2008-061
 

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Cryptophyllite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.9287:1:4.5891
Help on Cell Dimensions: Cell Dimensions: a = 6.4934, b = 6.9919, c = 32.087, beta = 94.68° V = 1,451.93
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 16.01(1), 2.903(0.84), 6.24(0.48),2.995(0.47), 3.197(0.27), 7.98(0.24), 2.623(0.23), 3.228(0.22),
 

Optical Properties of Cryptophyllite

Help on Optical Data: Optical Data:
 

Calculated Properties of Cryptophyllite

Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PECryptophyllite = 3.54 barns/electron
U=PECryptophyllite x relectron= . barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 238.29 (Gamma Ray American Petroleum Institute Units)
Concentration of Cryptophyllite per GRapi unit = 0.42 (%)

Estimated Radioactivity from Cryptophyllite - barely detectable

 

Cryptophyllite Classification
Help on Dana Class: Dana Class: 78.00.00.00 (78)Unclassified Silicate Minerals
  (78.00)Without Dana Classification Numbers
  (78.00.00)Silicate, Unclassified
 
78.00.00.00 Almbosite? Fe5Fe4V4Si3O27 Ortho ? Ortho
 
78.00.00.00 Chelyabinskite* (Ca,Mg)3Si(OH)6(SO4,CO3)2•9(H2O) Unk Ortho
 
78.00.00.00 Cryptophyllite K2Ca[Si4O10]•5H2O P 21/n 2/m
 
78.00.00.00 IMA2007-041T Na2[Ti4O2(OH)2(SiO4)3]•6H2O R 3m 3m
 
78.00.00.00 IMA2009-001 Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 R 3 3
 
78.00.00.00 Iddingsite? MgO.Fe2O3.3SiO2•4(H2O) Ortho
 
78.00.00.00 Ivanyukite-Cu Cu[Ti4(OH)2O2(SiO4)3]•7H2O P 4 3m 4 3m
 
78.00.00.00 Ivanyukite-K K2[Ti4(OH)2O2(SiO4)3]•9H2O P 4 3m 4 3m
 
78.00.00.00 Ivanyukite-Na Na2[Ti4O2(OH)2(SiO4)3]•6H2O P 4 3m 4 3m
 
78.00.00.00 Plumbophyllite Pb2Si4O10•H2O P bcn 2/m 2/m 2/m
 
78.00.00.00 Sturtite? (Fe3)(Mn2,Ca,Mg)Si4O10(OH)3•10(H2O) None
Help on Strunz Class: Strunz Class: 09.HX.00 09 - SILICATES (Germanates)
  09.H - Unclassified Strunz Silicates
  09.HX -Silicate, Unclassified
 
09.HX.00 Iddingsite? MgO.Fe2O3.3SiO2•4(H2O) Ortho
 
09.HX.00 IMA2007-041T Na2[Ti4O2(OH)2(SiO4)3]•6H2O R 3m 3m
 
09.HX.00 Plumbophyllite Pb2Si4O10•H2O P bcn 2/m 2/m 2/m
 
09.HX.00 Cryptophyllite K2Ca[Si4O10]•5H2O P 21/n 2/m
 

Other Cryptophyllite Information
Help on See Also: See Also: Links to other databases for Cryptophyllite :
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
10 - Ruff.Info

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

Cryptophyllite

K2Ca[Si4O10]•5H2O
Dana No: 78.00.00.00 Strunz No: 09.HX.00
Locality:

 

Notes: