Sartorite Mineral Data + Say SARTORITE

General Sartorite Information
Help on Chemical Formula: Chemical Formula: PbAs2S4
Help on Composition: Composition: Molecular Weight = 4,479.49 gm
   Thallium   6.39 %  Tl
   Antimony   1.36 %  Sb
   Arsenic   29.27 %  As
   Lead      37.93 %  Pb
   Sulfur    25.05 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Pb8.2Tl1.4As17.5Sb0.5S35
Help on Environment: Environment: Most common sulfosalt at the Binntal prospect.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1868
Help on Locality: Locality: Lengenbach, Binntal, Valais (Wallis), Switzerland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Sartorius von Walterhausen (1809-1876), German geologist who first mentioned the species.
Help on Synonym: Synonym: ICSD 15464
  PDF Nov-76
  Scleroclase
  Skleroklas
 

Sartorite Image

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Sartorite

Comments: Black, striated crystal of Sartorite on dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
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Sartorite

Comments: Excellent prismatic sartorite crystal on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal length 1 cm.
© Walter Gabriel

Sartorite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =4.7746:1:2.5457
Help on Cell Dimensions: Cell Dimensions: a = 37.71, b = 7.898, c = 20.106, Z = 4; beta = 101.993° V = 5,857.54 Den(Calc)= 5.08
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.752(1), 2.947(0.9), 3.52(0.9),
Help on Forms: Forms:

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Forms: [ 4 0 1] [ 2 0 1] [ 4 0 3] [ 1 0 1] [ 3 2 0] [ 1 0 0] [ 1 1 0] [ 0 0 1]

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Berlepsch P , Armbruster T , Makovicky E , Topa D , American Mineralogist , 88 (2003) p.450-461, Another step toward understanding the true nature of sartorite:, Determination and refinement of a ninefold superstructure

 

Physical Properties of Sartorite

Help on Cleavage: Cleavage: [100] Good
Help on Color: Color: Dear lead gray.
Help on Density: Density: 5.1
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Metallic
Help on Streak: Streak: dark brown
 

Optical Properties of Sartorite

Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Color: RL Color: Pure white, rarely with deep red internal reflections.
Help on RL Pleochroism: RL Pleochroism: Rarely visible, only in oil.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Sartorite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   38.60   43.60 
   
 420 nm   38.00   42.70 
 440 nm   37.40   41.80 
 460 nm   36.80   41.00 
 480 nm   36.40   40.20 
 500 nm   35.80   39.70 
 520 nm   35.20   39.20 
 540 nm   34.60   38.60 
 560 nm   33.80   37.80 
 580 nm   33.00   37.00 
 600 nm   32.20   36.00 
 620 nm   31.50   35.10 
 640 nm   30.80   34.20 
 660 nm   30.20   33.40 
 680 nm   29.60   32.80 
 700 nm   29.20   32.20 
Calculated Relative Intensity Colors of Sartorite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270% 280%
R1                        
R2                        
 

Calculated Properties of Sartorite

Help on Electron Density: Electron Density:

relectron=4.42 gm/cc
note: rSartorite =5.08 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.0857
Boson Index = 0.9143
Help on Photoelectric: Photoelectric:

PESartorite = 804.98 barns/electron
U=PESartorite x relectron=3,558.09 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Sartorite is Not Radioactive
 

Sartorite Classification
Help on Dana Class: Dana Class: 3.7.8.1 (3)Sulfides - Sulfosalts
  (3.7)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.7.8)Dana Group
 
3.7.8.1 Sartorite PbAs2S4 P 21/c 2/m
 
3.7.8.2 Guettardite Pb(Sb,As)2S4 P 21/a 2/m
 
3.7.8.3 Twinnite Pb(Sb,As)2S4 P1 1
 
3.7.8.4 Marumoite! Pb32As40S92 P 21 2
Help on Strunz Class: Strunz Class: II/E.25-30 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x) Lead-Sulfosalts with Arsen and Antimon x = 2.3 - 1.8
  II/E.25 - Liveingite - Twinnite series
 
II/E.25-10 Liveingite Pb9As13S28 P 21 2
 
II/E.25-20 Rathite Pb8Pb4-x(Tl2As2)x(Ag2As2)As16S40 P 21/n 2/m
 
II/E.25-30 Sartorite PbAs2S4 P 21/c 2/m
 
II/E.25-40 Guettardite Pb(Sb,As)2S4 P 21/a 2/m
 
II/E.25-50 Twinnite Pb(Sb,As)2S4 P1 1
 

Other Sartorite Information
Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Sartorite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris

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Sartorite

PbAs2S4
Dana No: 3.7.8.1 Strunz No: II/E.25-30
Locality:

 

Notes:

 
 
   
 
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