Mineralogy Database

Alflarsenite Mineral Data

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General Alflarsenite Information

Help on Chemical  Formula: Chemical Formula: NaCa2Be3Si4O13(OH)•2H2O
Help on Composition: Composition: Molecular Weight = 503.55 gm
   Sodium      4.57 %  Na    6.15 % Na2O
   Calcium    15.92 %  Ca   22.27 % CaO
   Beryllium   5.37 %  Be   14.90 % BeO
   Silicon    22.31 %  Si   47.73 % SiO2
   Hydrogen    1.00 %  H     8.94 % H2O
   Oxygen     50.84 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa2Be3Si4O13(OH)•2(H2O)
Help on Environment: Environment: Zeolite group; new structure type
Help on IMA Status: IMA Status: Proposed IMA 2008
Help on Locality: Locality: Tuften larvikite quarry, Tvedalen, Larvik, Vestfold, south Norway Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals, Nomenclature and Classification (CNMNC)
Help on Synonym: Synonym: IMA2008-023

Alflarsenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.359:1:0.4943
Help on Cell Dimensions: Cell Dimensions: a = 7.1222, b = 19.8378, c = 9.8071, beta = 111.287° V = 1,291.10
Help on Crystal System: Crystal System: Monoclinic - Sphenoidal H-M Symbol (2) Space Group: P 21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.095(1), 2.915(0.92), 3.972(0.76),2.964(0.7), 6.279(0.42), 3.205(0.37), 2.757(0.33), 4.189(0.32),

Optical Properties of Alflarsenite

Help on Optical Data: Optical Data:

Calculated Properties of Alflarsenite

Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PEAlflarsenite = 2.95 barns/electron
U=PEAlflarsenite x rElectron Density= . barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Alflarsenite is Not Radioactive

Alflarsenite Classification

Help on  Dana Class: Dana Class: (75)Tektosilicate Minerals
  (75.00)Without Dana Classification Numbers
  (75.00.00)Zeolite Alflarsenite NaCa2Be3Si4O13(OH)•2H2O P 21 2 Florkeite (K3Ca2Na)[Al8Si8O32]•12H2O P1 1 Lechatelierite* SiO2 None
Help on  Strunz Class: Strunz Class: 09.G 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.G -
09.G Alflarsenite NaCa2Be3Si4O13(OH)•2H2O P 21 2

Other Alflarsenite Information

Help on See Also: See Also: Links to other databases for Alflarsenite :
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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Dana No: Strunz No: 09.G