Svenekite Mineral Data

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General Svenekite Information

Chemical Formula:

Ca(H2AsO4)2

Composition:

Molecular Weight = 319.93 gm

Calcium 12.53 % Ca 17.53 % CaO

Arsenic 46.84 % As 71.84 % As₂O₅

Hydrogen 0.63 % H 5.63 % H₂O

Oxygen 40.01 % O

______ ______

100.00 % 95.00 % = TOTAL OXIDE

Empirical Formula:

CaH₂(AsO₄)₂

IMA Status:

Proposed IMA 1999 (Dana # Added)

Locality:

Pribram, Bohemia, Czechoslovakia Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Synonym:

IMA1999-007

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Svenekite Crystallography

Axial Ratios:

a:b:c =1.1105:1:0.743

Cell Dimensions:

a = 8.5485, b = 7.6973, c = 5.7198, Z = 2; alpha = 92.59°, beta = 109.87°, gamma = 109.92° V = 332.44 Den(Calc)= 3.20

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.558(1), 3.101(0.82), 3.974(0.72),3.041(0.62), 3.7(0.6), 2.666(0.52), 2.173(0.48),

Physical Properties of Svenekite

Color:

White, Colorless.

Diaphaneity:

Translucent

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Svenekite

Gladstone-Dale:

CI calc= -0.125 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1938,KC= 0.1723
Ncalc = 1.56

Optical Data:

Biaxial (?), a=1.602, g=1.658, bire=0.0560

Calculated Properties of Svenekite

Electron Density:

Bulk Density (Electron Density)=3.09 gm/cc
note: Specific Gravity of Svenekite =3.25 gm/cc.

Fermion Index:

Fermion Index = 0.0003620934
Boson Index = 0.9996379066

Photoelectric:

PE_Svenekite= 33.57 barns/electron
U=PE_Svenekite x rElectron Density= 103.66 barns/cc.

Radioactivity:

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

Svenekite Classification

Dana Class:

37.01.07.01 (37)Anhydrous Acid Phosphates, etc

(37.01)with miscellaneous formulae

(37.01.07)Dana Group

37.01.07.01 Svenekite! Ca(H2AsO4)2 P1 1

Strunz Class:

08.AD.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.A - Phosphates, etc. without additional anions, without H2O

08.AD -With only large cations

08.AD.10 Monetite CaHPO4 P1 1

08.AD.10 Weilite CaHAsO4 P1 1

08.AD.10 Svenekite! Ca(H2AsO4)2 P1 1

Other Svenekite Information

References:

NAME( CanMin, Vol 38) PHYS. PROP.(CanMin, Vol 38) OPTIC PROP.(CanMin, Vol 38)

See Also:

Links to other databases for Svenekite :
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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Translate Svenekite Mineral Data :

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

Svenekite

Ca(H2AsO4)2
Dana No: 37.01.07.01 Strunz No: 08.AD.10
Locality:

Notes: