Mineralogy Database

Wittichenite Mineral Data

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General Wittichenite Information

Help on Chemical  Formula: Chemical Formula: Cu3BiS3
Help on Composition: Composition: Molecular Weight = 495.82 gm
   Copper   38.45 %  Cu
   Bismuth  42.15 %  Bi
   Sulfur   19.40 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: Cu3BiS3
Help on Environment: Environment: In hydrothermal veins with other Bi minerals.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1853
Help on Locality: Locality: Wittichen, Baden, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Wittichenite + Pronunciation Say WITTICHENITE
Help on Synonym: Synonym: ICSD 14305
  Klaprothite - mixture with emplectite
  PDF 43-1479
 

Wittichenite Image

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  Wittichenite

Comments: Black metallic wittichenite in white barite.
Location: Schmiedestollen, Wittichen, Black Forest, Baden-Wurttemberg, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Wittichenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7429:1:0.6488
Help on Cell Dimensions: Cell Dimensions: a = 7.66, b = 10.31, c = 6.69, Z = 4; V = 528.34 Den(Calc)= 6.23
Help on Crystal System: Crystal System: Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 212121
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.85(1), 3.08(0.8), 4.55(0.4),
 

Physical Properties of Wittichenite

Help on Cleavage: Cleavage: None
Help on Color: Color: Lead gray, Bronze, Steel gray, Tin white.
Help on Density: Density: 6.3 - 6.7, Average = 6.5
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Columnar - Forms columns
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Wittichenite

Help on RL Anisotrophism: RL Anisotrophism: Weak, shades of dark brown.
Help on RL Color: RL Color: White, creamy to grayish.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Wittichenite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   35.00   36.90 
   
 420 nm   34.10   35.80 
 440 nm   33.20   34.70 
 460 nm   32.70   34.00 
 480 nm   32.60   34.10 
 500 nm   32.90   34.70 
 520 nm   33.20   35.00 
 540 nm   33.50   35.20 
 560 nm   33.60   35.30 
 580 nm   33.50   35.30 
 600 nm   33.20   35.20 
 620 nm   33.00   35.20 
 640 nm   32.80   35.20 
 660 nm   32.40   35.00 
 680 nm   31.70   34.60 
 700 nm   30.80   34.00 
Calculated Relative Intensity Colors of Wittichenite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270%
R1                      
R2                      
 

Calculated Properties of Wittichenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.48 gm/cc
note: Specific Gravity of Wittichenite =6.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.001455567
Boson Index = 0.998544433
Help on Photoelectric: Photoelectric: PEWittichenite = 790.87 barns/electron
U=PEWittichenite x rElectron Density=4,332.73 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wittichenite is Not Radioactive
 

Wittichenite Classification

Help on  Dana Class: Dana Class: 03.04.08.01 (03)Sulfides - Sulfosalts
  (03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.08)Dana Group
 
03.04.08.01 Wittichenite Cu3BiS3 P 212121 2 2 2
 
03.04.08.02 Skinnerite Cu3SbS3 P 21/c 2/m
 
03.04.08.03 Moeloite! Pb6Sb6S14(S3) P 21221 2 2 2
Help on  Strunz Class: Strunz Class: 02.GA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.G - Sulfarsenites, sulfantimonites, sulfbismuthites
  02.GA -Neso-sulfarsenites, etc., without additional S
 
02.GA.20 Skinnerite Cu3SbS3 P 21/c 2/m
 
02.GA.20 Wittichenite Cu3BiS3 P 212121 2 2 2
 

Other Wittichenite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Wittichenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Wittichenite

Cu3BiS3
Dana No: 03.04.08.01 Strunz No: 02.GA.20
Locality:

 

Notes:

 

 
   
 


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