Sartorite Mineral Data
General Sartorite Information
Chemical Formula:
PbAs2S4
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 %
Empirical Formula:
Pb8.2 Tl1.4 As17.5 Sb0.5 S35
Environment:
Most common sulfosalt at the Binntal prospect.
IMA Status:
Valid Species (Pre-IMA) 1868
Locality:
Lengenbach, Binntal, Valais (Wallis), Switzerland. Link to MinDat.org Location Data.
Name Origin:
Named for Sartorius von Walterhausen (1809-1876), German geologist who first mentioned the species.
Name Pronunciation:
Sartorite + Pronunciation
Synonym:
ICSD 15464
PDF Nov-76
Rathite-IV - (of Nowacki et al. 1964) = sartorite
Scleroclase
Skleroklas
Sartorite Image
Images:
Images:
Sartorite
Comments: Excellent prismatic sartorite crystal on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland.
Scale: Crystal length 1 cm.
© Walter Gabriel
Sartorite Crystallography
Axial Ratios:
a:b:c =4.7746:1:2.5457
Cell Dimensions:
a = 37.71, b = 7.898, c = 20.106, Z = 4; beta = 101.993° V = 5,857.54 Den(Calc)= 5.08
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21 /c
X Ray Diffraction:
By Intensity(I/Io ): 2.752(1), 2.947(0.9), 3.52(0.9),
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( 4 0 1)
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Physical Properties of Sartorite
Cleavage:
{100} Good
Color:
Dear lead gray.
Density:
5.1
Diaphaneity:
Opaque
Fracture:
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Habit:
Acicular - Occurs as needle-like crystals.
Habit:
Striated - Parallel lines on crystal surface or cleavage face.
Hardness:
3 - Calcite
Luster:
Metallic
Streak:
dark brown
Optical Properties of Sartorite
RL Anisotrophism:
Weak.
RL Color:
Pure white, rarely with deep red internal reflections.
RL Pleochroism:
Rarely visible, only in oil.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Sartorite in Air
λ
R1
R 2
∑ 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
Electron Density:
Bulk Density (Electron Density)=4.42 gm/cc note: Specific Gravity of Sartorite =5.08 gm/cc.
Fermion Index:
Fermion Index = 0.08 Boson Index = 0.92
Photoelectric:
PESartorite = 804.98 barns/electronU=PESartorite x r Electron Density=3,558.09 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Sartorite is Not Radioactive
Sartorite Classification
Dana Class:
03.07.08.01 (03) Sulfides - Sulfosalts
(03.07) where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
(03.07.08) Sartorite Group
03.07.08.01 Sartorite PbAs2S4 P 21 /c 2/m
03.07.08.02 Guettardite Pb(Sb,As)2S4 P 21 /a 2/m
03.07.08.03 Twinnite Pb(Sb,As)2S4 P1 1
03.07.08.04 Marumoite ! Pb32As40S92 P 21 2
Strunz Class:
02.HC.05a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.H - Sulfosalts of SnS Archetype
02.HC -With only Pb
02.HC.05a Guettardite Pb(Sb,As)2S4 P 21 /a 2/m
02.HC.05a Sartorite PbAs2S4 P 21 /c 2/m
02.HC.05a Twinnite Pb(Sb,As)2S4 P1 1
Other Sartorite Information
References:
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
See Also:
Links to other databases for Sartorite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
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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Sartorite
PbAs2S4
Dana No: 03.07.08.01 Strunz No: 02.HC.05a
Locality:
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