Elsmoreite Mineral Data

Elsmoreite Mineral Data

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General Elsmoreite Information

Chemical Formula:

WO3·0.5(H2O)

Composition:

Molecular Weight = 240.86 gm

Hydrogen 0.42 % H 3.74 % H₂O

Tungsten 76.33 % W 96.26 % WO₃

Oxygen 23.25 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

WO₃·0.5(H₂O)

Environment:

Related to ferritungstite

IMA Status:

Proposed IMA 2003 (Dana # Added)

Locality:

Zinc mine of Elsmore, New England district, New South Wales, Australia. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Synonym:

IMA2003-059

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Elsmoreite Crystallography

Cell Dimensions:

a = 10.203, Z = 14; V = 1,062.15 Den(Calc)= 5.27

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m

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

By Intensity(I/I_o): 5.88(1), 2.944(0.78), 3.08(0.62),1.804(0.23), 1.964(0.17), 1.538(0.14), 1.725(0.14), 2.551(0.12),

Physical Properties of Elsmoreite

Color:

White.

Diaphaniety:

Translucent

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Elsmoreite

Gladstone-Dale:

CI calc= -0.327 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2353,KC= 0.1773

Optical Data:

Isotropic, n=2.24.

Calculated Properties of Elsmoreite

Electron Density:

r_electron=4.51 gm/cc
note: r_Elsmoreite=5.27 gm/cc.

Fermion Index

Fermion Index = 0.10911
Boson Index = 0.89089

Photoelectric:

PE_Elsmoreite= 962.99 barns/electron
U=PE_Elsmoreite x r_electron=4,340.54 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Elsmoreite is Not Radioactive

Elsmoreite Classification

Dana Class:

4.5.5.2 (4)Simple Oxides

(4.5)with a cation charge of 6+ (A++++++ O3)

(4.5.5)Dana Group

4.5.5.1 Ferritungstite (K,Ca,Na)(W,Fe)2(O,OH)6·(H2O) F d3m 4/m 3 2/m

4.5.5.2 Elsmoreite ! WO3·0.5(H2O) F d3m 4/m 3 2/m

Strunz Class:

IV/X.00-00 IV - Oxides

IV/X - Unclassified Strunz Oxides

IV/X.00 - Wolframate, Hydrated

Other Elsmoreite Information

See Also:

Links to other databases for Elsmoreite :
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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Print or Cut-and-Paste your Elsmoreite Specimen Label here :

Elsmoreite

WO3·0.5(H2O)
Dana No: 4.5.5.2 Strunz No: IV/X.00-00
Locality:

Notes: