Wittichenite Mineral Data (original) (raw)
General Wittichenite Information
Chemical Formula:
Cu3BiS3
Composition:
Molecular Weight = 495.82 gm
Copper 38.45 % Cu
Bismuth 42.15 % Bi
Sulfur 19.40 % S
______
100.00 %
Empirical Formula:
Cu3BiS3
Environment:
In hydrothermal veins with other Bi minerals.
IMA Status:
Valid Species (Pre-IMA) 1853
Locality:
Wittichen, Baden, Germany. Link to MinDat.org Location Data.
Name Origin:
Named after its locality.
Name Pronunciation:
Wittichenite + Pronunciation 
Synonym:
ICSD 14305
Klaprothite - mixture with emplectite
PDF 43-1479
Wittichenite Image
Images:
Wittichenite Crystallography
Axial Ratios:
a:b:c =0.7429:1:0.6488
Cell Dimensions:
a = 7.66, b = 10.31, c = 6.69, Z = 4; V = 528.34 Den(Calc)= 6.23
Crystal System:
Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 212121
X Ray Diffraction:
By Intensity(I/Io): 2.85(1), 3.08(0.8), 4.55(0.4),
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
| | Kocman V , Nuffield E W , Acta Crystallographica, Section B , 29 (1973) p.2528-2535, The crystal structure of wittichenite, Cu3BiS3, Locality: Daniel Mine, Wittichen, Baden, Germany | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Wittichenite
Cleavage:
None
Color:
Lead gray, Bronze, Steel gray, Tin white.
Density:
6.3 - 6.7, Average = 6.5
Diaphaneity:
Opaque
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Columnar - Forms columns
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Habit:
Nodular - Tuberose forms having irregular protuberances over the surface.
Hardness:
2.5 - Finger Nail
Luster:
Metallic
Streak:
black
Optical Properties of Wittichenite
RL Anisotrophism:
Weak, shades of dark brown.
RL Color:
White, creamy to grayish.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Wittichenite in Air
| λ | R1 | R 2 |  |
∑ 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
| RelativeIntensity | 0% | 30% | 60% | 90% | 100% | 120% | 150% | 180% | 210% | 240% | 270% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R1 | |||||||||||
| R2 |
Calculated Properties of Wittichenite
Electron Density:
Bulk Density (Electron Density)=5.48 gm/cc
note: Specific Gravity of Wittichenite =6.23 gm/cc.
Fermion Index:
Fermion Index = 0.001455567
Boson Index = 0.998544433
Photoelectric:
PEWittichenite = 790.87 barns/electron
U=PEWittichenite x rElectron Density=4,332.73 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wittichenite is Not Radioactive
Wittichenite Classification
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
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
References:
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
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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Ask about Wittichenite here :
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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: