Seligmannite Mineral Data

Seligmannite Mineral Data
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General Seligmannite Information

Help on Chemical Formula: Chemical Formula: PbCuAsS3
Help on Composition: Composition: Molecular Weight = 441.87 gm
   Copper   14.38 %  Cu
   Arsenic  16.96 %  As
   Lead     46.89 %  Pb
   Sulfur   21.77 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: PbCuAsS3
Help on Environment: Environment: Forms a series with bournonite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1902
Help on Locality: Locality: Lengenbach quarry, Binnental, Valais, Switzerland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Gustav Seligman (1849-1920), German mineral collector.
Help on Name Pronunciation: Name Pronunciation: Seligmannite + Pronunciation Say SELIGMANNITE
Help on Synonym: Synonym: ICSD 14304
  PDF Nov-92
 

Seligmannite Image

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Seligmannite   Liveingite

Comments: Black prismatic seligmannite crystals with crystalline black liveingite.
Location: Lengenbach Quarry, Binnental, Valais, Switzerland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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Seligmannite

Comments: Lead gray, prismatic seligmannite crystal with brassy yellow pyrite on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 2 mm.
© Walter Gabriel

Seligmannite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.9234:1:0.8742
Help on Cell Dimensions: Cell Dimensions: a = 8.08, b = 8.75, c = 7.65, Z = 4; V = 540.85 Den(Calc)= 5.43
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmmn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.72(1), 3.85(0.8), 1.749(0.7),
Help on Forms: Forms:

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Forms: ( 2 1 0) ( 0 1 0) ( 2 1 1) ( 1 0 1) ( 2 1 2) ( 0 1 1) ( 1 1 0) ( 1 0 0) ( 0 0 1)

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Takeuchi Y , Haga N , Zeitschrift fur Kristallographie , 130 (1969) p.254-260, On the crystal structures of seligmannite, PbCuAsS3, and related minerals

View Additional jPOWD Structure files for Seligmannite
[1]
 

Physical Properties of Seligmannite

Help on Cleavage: Cleavage: {001} Indistinct, {100} Indistinct, {010} Indistinct
Help on Color: Color: Lead gray, Dark lead gray, Black.
Help on Density: Density: 5.38 - 5.44, Average = 5.41
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Twinning Common - Crystals are usually twinned.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: chocolate brown
 

Optical Properties of Seligmannite

Help on RL Anisotrophism: RL Anisotrophism: Strong.
Help on RL Color: RL Color: Rose white.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Seligmannite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   34.80   33.60 
   
 420 nm   34.60   33.60 
 440 nm   34.40   33.60 
 460 nm   34.20   33.70 
 480 nm   33.80   33.80 
 500 nm   33.40   33.80 
 520 nm   32.90   33.70 
 540 nm   32.40   33.60 
 560 nm   32.00   33.40 
 580 nm   31.60   33.10 
 600 nm   31.40   32.70 
 620 nm   31.00   32.20 
 640 nm   30.60   31.50 
 660 nm   30.20   30.90 
 680 nm   29.70   30.10 
 700 nm   29.20   29.40 
Calculated Relative Intensity Colors of Seligmannite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270% 290%
R1                        
R2                        
 

Calculated Properties of Seligmannite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.72 gm/cc
note: Specific Gravity of Seligmannite =5.43 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.1
Boson Index = 0.9
Help on Photoelectric: Photoelectric: PESeligmannite = 849.17 barns/electron
U=PESeligmannite x rElectron Density=4,007.15 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Seligmannite is Not Radioactive
 

Seligmannite Classification
Help on Dana Class: Dana Class: 03.04.03.01 (03)Sulfides - Sulfosalts
  (03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.03)Seligmannite Group
 
03.04.03.01 Seligmannite PbCuAsS3 Pmmn 2/m 2/m 2/m
 
03.04.03.02 Bournonite PbCuSbS3 Pn21m 2/m 2/m 2/m
 
03.04.03.03 Soucekite PbCuBi(S,Se)3 Pn21m mm2
Help on Strunz Class: Strunz Class: 02.GA.50 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.50 Bournonite PbCuSbS3 Pn21m 2/m 2/m 2/m
 
02.GA.50 Seligmannite PbCuAsS3 Pmmn 2/m 2/m 2/m
 
02.GA.50 Soucekite PbCuBi(S,Se)3 Pn21m mm2
 

Other Seligmannite 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 Seligmannite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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Seligmannite

PbCuAsS3
Dana No: 03.04.03.01 Strunz No: 02.GA.50
Locality:

 

Notes: