Alflarsenite Mineral Data

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General Alflarsenite Information

Chemical Formula:

NaCa2Be3Si4O13(OH)•2H2O

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

Empirical Formula:

NaCa₂Be₃Si₄O₁₃(OH)•2(H₂O)

Environment:

Zeolite group; new structure type

IMA Status:

Proposed IMA 2008

Locality:

Tuften larvikite quarry, Tvedalen, Larvik, Vestfold, south Norway Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Synonym:

IMA2008-023

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Alflarsenite Crystallography

Axial Ratios:

a:b:c =0.359:1:0.4943

Cell Dimensions:

a = 7.1222, b = 19.8378, c = 9.8071, beta = 111.287° V = 1,291.10

Crystal System:

Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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

Optical Data:

Calculated Properties of Alflarsenite

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

PE_Alflarsenite= 2.95 barns/electron
U=PE_Alflarsenite x rElectron Density= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Alflarsenite is Not Radioactive

Alflarsenite Classification

Dana Class:

75.00.00.00 (75)Tektosilicate Minerals

(75.00)Without Dana Classification Numbers

(75.00.00)Zeolite

75.00.00.00 Alflarsenite NaCa2Be3Si4O13(OH)•2H2O P 2₁ 2

75.00.00.00 Florkeite (K3Ca2Na)[Al8Si8O32]•12H2O P1 1

75.00.00.00 Lechatelierite* SiO2 None

Strunz Class:

09.G 09 - SILICATES (Germanates)

09.G - Tektosilicates with Zeolitic H2O

09.G Alflarsenite NaCa2Be3Si4O13(OH)•2H2O P 2₁ 2

Other Alflarsenite Information

See Also:

Links to other databases for Alflarsenite :
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 Alflarsenite Specimen Label here :

Alflarsenite

NaCa2Be3Si4O13(OH)•2H2O
Dana No: 75.00.00.00 Strunz No: 09.G
Locality:

Notes: