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Bohdanowiczite Mineral Data

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General Bohdanowiczite Information

Help on Chemical  Formula: Chemical Formula: AgBiSe2
Help on Composition: Composition: Molecular Weight = 474.77 gm
   Silver    22.72 %  Ag
   Bismuth   44.02 %  Bi
   Selenium  33.26 %  Se
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: AgBiSe2
Help on Environment: Environment: In fluorite and quartz in a strongly brecciated zone formed in crystalline limestone adjacent to magnetite-bearing skarns.
Help on IMA Status: IMA Status: Approved IMA 1967
Help on Locality: Locality: Kletna deposit, Sudetes Mountains, Poland Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Karol Bohdanovicz (1864-1947), Polish economic geologist.
Help on Name Pronunciation: Name Pronunciation: Bohdanowiczite + Pronunciation Say BOHDANOWICZITE
Help on Synonym: Synonym: ICSD 26519
  PDF 29-1441
 

Bohdanowiczite Image

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  Bohdanowiczite

Comments: PPL polished section with Se-rich digenite (Se-dig) exsolved from massive bornite (Bn). Note the disseminated grains of bohdanowiczite (Bo) and naumannite surrounding the exsolved digenite.
Location: Kidd Creek Volcanogenic Massive Sulfide deposit, Western Abitibi Subprovince, Timmins, Ontario, Canada. Scale: Picture Size.
© National Resouces of Canada

Bohdanowiczite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:4.67311
Help on Cell Dimensions: Cell Dimensions: a = 4.2049, c = 19.65, Z = 3; V = 300.89 Den(Calc)= 7.86
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: P 3m1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.926(1), 2.036(0.8), 2.101(0.8),
 

Physical Properties of Bohdanowiczite

Help on Color: Color: Lead gray.
Help on Density: Density: 7.87
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Metallic
 

Optical Properties of Bohdanowiczite

Help on RL Anisotrophism: RL Anisotrophism: Noticeable, distinctly stronger in oil, in yellowish gray tones.
Help on RL Color: RL Color: Pale creamy yellow to pink.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Bohdanowiczite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   51.20   52.90 
   
 546 nm   49.80   51.50 
 589 nm   50.10   51.50 
 650 nm   50.10   51.60 
Calculated Relative Intensity Colors of Bohdanowiczite in Air
Relative
Intensity
   0%   20%   40%   60%   80% 100% 120% 140% 160% 180%
R1                    
R2                    
 

Calculated Properties of Bohdanowiczite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.56 gm/cc
note: Specific Gravity of Bohdanowiczite =7.86 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEBohdanowiczite = 939.32 barns/electron
U=PEBohdanowiczite x rElectron Density=6,158.14 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bohdanowiczite is Not Radioactive
 

Bohdanowiczite Classification

Help on  Dana Class: Dana Class: 03.07.01.02 (03)Sulfides - Sulfosalts
  (03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.07.01)Matildite Group
 
03.07.01.01 Matildite AgBiS2 P 3m1 3 2/m
 
03.07.01.02 Bohdanowiczite AgBiSe2 P 3m1 3 2/m
 
03.07.01.03 Volynskite AgBiTe2 P 3m1 3 2/m
 
03.07.01.04 Zlatogorite! CuNiSb2 P 3m1 3 2/m
Help on  Strunz Class: Strunz Class: 02.JA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.J - Sulfosalts of PbS Archetype
  02.JA -Galena derivatives with little or no Pb
 
02.JA.20 Bohdanowiczite AgBiSe2 P 3m1 3 2/m
 
02.JA.20 Matildite AgBiS2 P 3m1 3 2/m
 
02.JA.20 Volynskite AgBiTe2 P 3m1 3 2/m
 

Other Bohdanowiczite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Bohdanowiczite :
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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Bohdanowiczite

AgBiSe2
Dana No: 03.07.01.02 Strunz No: 02.JA.20
Locality:

 

Notes:

 

 
   
 


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