Tungstibite Mineral Data

Tungstibite Mineral Data
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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

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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: