Tungstibite Mineral Data (original) (raw)

General Tungstibite Information

Help on Chemical Formula: Chemical Formula:

Sb2O3•WO3

Help on Composition: Composition:

Molecular Weight = 523.35 gm

Antimony 46.53 % Sb 55.70 % Sb2O3

Tungsten 35.13 % W 44.30 % WO3

Oxygen 18.34 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Sb2WO6

Help on Environment: Environment:

Alteration product of tungsten and antimony ores.

Help on IMA Status: IMA Status:

Approved IMA 1995

Help on Locality: Locality:

The Clara Mine, near Oberwolfach, central Black Forest, Germany. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named after its chemical composition of tungsten (W) and antimony (Sb). Swedish, tung sten = "heavy stone" and Latin, "stibium."

Help on Name Pronunciation: Name Pronunciation:

Tungstibite + Pronunciation Say TUNGSTIBITE

Help on Synonym: Synonym:

IMA1993-059

Tungstibite Image

Click Here for Larger Tungstibite Image in a New Browser Window Images:

Click Here for Larger Tungstibite Image Tungstibite Comments: Dark olive-green spherical aggregate of tungstibite in matrix. Location: Clara Mine, Oberwolfach, Wolfach Valley, Black Forest, Baden-Württemberg, Germany.Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag

Tungstibite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.8966:1:0.6388

Help on Cell Dimensions: Cell Dimensions:

a = 8.59, b = 9.58, c = 6.12, Z = 4; V = 503.63 Den(Calc)= 6.90

Help on Crystal System: Crystal System:

Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 22121

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.06(1), 3.32(1), 2.73(0.6),

Physical Properties of Tungstibite

Help on Cleavage: Cleavage:

{001} Perfect

Help on Color: Color:

Green, Dark green.

Help on Density: Density:

6.69

Help on Diaphaneity: Diaphaneity:

Translucent to opaque

Help on Fracture: Fracture:

Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern.

Help on Habit: Habit:

Globular - Spherical, or nearly so, rounded forms (e.g. wavellite).

Help on Hardness: Hardness:

2 - Gypsum

Help on Luster: Luster:

Earthy (Dull)

Help on Streak: Streak:

greenish white

Optical Properties of Tungstibite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.125 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.091 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.206,KPDmeas= 0.2125,KC= 0.1888
Ncalc = 2.26 - 2.3

Help on Optical Data: Optical Data:

Biaxial (+), a=2.285, b=2.4, g=2.58, bire=0.2950, 2V(Calc)=84, 2V(Meas)=82. Dispersion strong, r < v.

Calculated Properties of Tungstibite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=5.91 gm/cc
note: Specific Gravity of Tungstibite =6.90 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Help on Photoelectric: Photoelectric:

PETungstibite = 602.63 barns/electron
U=PETungstibite x rElectron Density=3,559.51 barns/cc.

Help on Radioactivity: Radioactivity:

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

Tungstibite Classification

Help on Dana Class: Dana Class:

48.02.03.01 (48)Anhydrous Molybdates and Tungstates

(48.02)where (A)2 XO4

(48.02.03)Dana Group

48.02.03.01 Tungstibite Sb2O3•WO3 P 22121 2 2 2

Help on Strunz Class: Strunz Class:

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

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

04.DE -With medium-sized cations; with various polyhedra

04.DE.15 Koechlinite Bi2MoO6 C mca 2/m 2/m 2/m

04.DE.15 Russellite Bi2WO6 P ca21 mm2

04.DE.15 Tungstibite Sb2O3•WO3 P 22121 2 2 2

Other Tungstibite Information

Help on References: References:

NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,p767,1996) OPTIC PROP.(MinRec)

Help on See Also: See Also:

Links to other databases for Tungstibite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Tungstibite

Sb2O3•WO3
Dana No: 48.02.03.01 Strunz No: 04.DE.15
Locality:

Notes: