Elsmoreite Mineral Data (original) (raw)

General Elsmoreite Information

Help on Chemical Formula: Chemical Formula:

WO3•0.5(H2O)

Help on Composition: Composition:

Molecular Weight = 239.77 gm

Hydrogen 0.37 % H 3.31 % H2O

Tungsten 76.68 % W 96.69 % WO3

Oxygen 22.95 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

WO3•0.44(H2O)

Help on Environment: Environment:

Formed as a result of the oxidation of ferberite in the oxidized zone of weakly mineralized Sn, W, Mo, Bi granitic pegmatite dykes. Related to ferritungstite

Help on IMA Status: IMA Status:

Approved IMA 2003 (Dana # Added)

Help on Locality: Locality:

Elsmore tin deposit in Elsmore Hill, 17 km east of Inverell and adjacent to the village of Elsmore, New England region, New South Wales, Australia Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the locality.

Help on Synonym: Synonym:

IMA2003-059

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Elsmoreite Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 10.203, Z = 16; V = 1,062.15 Den(Calc)= 6.00

Help on Crystal System: 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/Io): 5.88(1)(111), 2.944(0.78)(222), 3.08(0.62)(311),1.804(0.23)(440), 1.964(0.17)(511), 1.538(0.14)(622), 1.725(0.14)(531), 2.551(0.12)(400),

Physical Properties of Elsmoreite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

White.

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Fracture: Fracture:

Brittle - Splintery - Brittle fracture leaving splintery fragments.

Help on Habit: Habit:

Powdery - Forms a loose, poorly-coherent pulverulent mass.

Help on Hardness: Hardness:

3 - Calcite

Help on Luster: Luster:

Adamantine

Help on Streak: Streak:

white

Optical Properties of Elsmoreite

Help on Gladstone-Dale: Gladstone-Dale:

CI calc= -0.17 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2067,KC= 0.1766
Ncalc = 2.06

Help on Optical Data: Optical Data:

Isotropic, n=2.24.

Calculated Properties of Elsmoreite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=5.12 gm/cc
note: Specific Gravity of Elsmoreite =6.00 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.1
Boson Index = 0.9

Help on Photoelectric: Photoelectric:

PEElsmoreite = 968.63 barns/electron
U=PEElsmoreite x rElectron Density=4,964.06 barns/cc.

Help on Radioactivity: Radioactivity:

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

Elsmoreite Classification

Help on Dana Class: Dana Class:

04.05.05.02 (04)Simple Oxides

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

(04.05.05)Dana Group

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

04.05.05.02 Elsmoreite! WO3•0.5(H2O) F d3m 4/m 3 2/m

Help on Strunz Class: Strunz Class:

04.DH.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DH -With large (� medium-sized) cations; sheets of edge-sharing octahedra

04.DH.15 Alumotungstite (W,Al)(O,OH)3(?) Unk Cubic

04.DH.15 Betafite (Ca,U)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m

04.DH.15 Ferritungstite (K,Ca,Na)(W,Fe)2(O,OH)6•(H2O) F d3m 4/m 3 2/m

04.DH.15 Cesstibtantite (Cs,Na)SbTa4O12 F d3m 4/m 3 2/m

04.DH.15 Bismutomicrolite (Bi,Ca)(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m

04.DH.15 Ceriopyrochlore-(Ce) (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m

04.DH.15 Bariopyrochlore (Ba,Sr)(Nb,Ti)2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Bariomicrolite Ba(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Calciobetafite Ca2(Ti,Nb)2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Jixianite Pb(W,Fe)2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Plumbomicrolite (Pb,Ca,U)2Ta2O6(OH) F d3m 4/m 3 2/m

04.DH.15 Kalipyrochlore (H2O,Sr)(Nb,Ti)(O,OH)6•(H2O,K) F d3m 4/m 3 2/m

04.DH.15 Plumbopyrochlore (Pb,Y,U,Ca)2-xNb2O6(OH) F d3m 4/m 3 2/m

04.DH.15 Strontiopyrochlore* Sr2Nb2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Uranmicrolite (U,Ca)2(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m

04.DH.15 Pyrochlore (Na,Ca)2Nb2O6(OH,F) F d3m 4/m 3 2/m

04.DH.15 Microlite (Na,Ca)2Ta2O6(O,OH,F) F d3m 4/m 3 2/m

04.DH.15 Natrobistantite (Na,Cs)Bi(Ta,Nb,Sb)4O12 F d3m 4/m 3 2/m

04.DH.15 Plumbobetafite (Pb,U,Ca)(Ti,Nb)2O6(OH,F) F d3m 4/m 3 2/m

04.DH.15 Stibiomicrolite (Sb,Ca,Na)2(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Stannomicrolite (Sn,Fe,Mn)(Ta,Nb,Sn)2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Stibiobetafite (Sb,Ca)2(Ti,Nb,Ta)2(O,OH)7 F d3m 4/m 3 2/m

04.DH.15 Uranpyrochlore (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m

04.DH.15 Bismutopyrochlore! (Bi,U,Ca,Pb)1x(Nb,Ta)2O6(OH)•n(H2O) F d3m 4/m 3 2/m

04.DH.15 Fluornatromicrolite! (Na,Ca,Bi)2Ta2O6F F d3m 4/m 3 2/m

04.DH.15 Yttrobetafite-(Y) (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m

04.DH.15 Yttropyrochlore-(Y) (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7 F d3m 2/m 3

04.DH.15 Elsmoreite! WO3•0.5(H2O) F d3m 4/m 3 2/m

Other Elsmoreite Information

Help on References: References:

NAME( AmMin, v91, p217) PHYS. PROP.(AmMin, v91, p217) OPTIC PROP.(AmMin, v91, p217)

Help on See Also: See Also:

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

Elsmoreite

WO3•0.5(H2O)
Dana No: 04.05.05.02 Strunz No: 04.DH.15
Locality:

Notes: