Xilingolite Mineral Data + Say XILINGOLITE

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General Xilingolite Information

Help on Chemical  Formula: Chemical Formula: Pb3Bi2S6
Help on Composition: Composition: Molecular Weight = 1,231.96 gm
   Bismuth  33.93 %  Bi
   Lead     50.46 %  Pb
   Sulfur   15.62 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: Pb3Bi2S6
Help on Environment: Environment: Dimorphous with lillianite.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Chaobuleng district, Xilingola League, Inner Mongolia, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
 

Xilingolite Image

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Xilingolite

Comments: Elongate and striated crystal of xilingolite, roughly 2 mm long, on galena showing an octahedral cleavage, together with quartz. (CanMin, v 39, p 1665).
Location: Found on dumps excavated during tunnel construction between Mittal and Hohtenn in Valais, Switzerland. Scale: Picture Size 4 mm.
© Canadian Mineralogist

Xilingolite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =3.3074:1:5.0548
Help on Cell Dimensions: Cell Dimensions: a = 13.511, b = 4.085, c = 20.649, Z = 4; beta = 92.15° V = 1,138.87 Den(Calc)= 7.18
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.38(1), 2.177(0.9), 2.073(0.8),
Click Here for Large Xilingolite Structure Window Crystal Structure:

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Help on Above


Berlepsch P , Armbruster T , Makovicky E , Hejny C , Topa D , Graeser S , The Canadian Mineralogist , 39 (2001) p.1653-1663, The crystal structure of (001) twinned xilingolite, Pb3Bi2S6,, from Mittal-Hohtenn, Valais, Switzerland, Locality: Mittal-Hohtenn, Valais, Switzerland

 

Physical Properties of Xilingolite

Help on Color: Color: Lead gray.
Help on Density: Density: 7.08
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Metallic
Help on Streak: Streak: gray
 

Optical Properties of Xilingolite

Help on RL Anisotrophism: RL Anisotrophism: Distinct, dark gray to brown.
Help on RL Color: RL Color: White with a faint blue tint.
Help on RL Pleochroism: RL Pleochroism: Distinct, white to white with blue tint.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Xilingolite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 405 nm   43.20   46.60 
   
 436 nm   44.50   46.80 
 480 nm   44.30   46.80 
 526 nm   44.20   44.90 
 546 nm   41.80   44.50 
 578 nm   41.40   44.10 
 589 nm   40.90   43.80 
 622 nm   40.50   43.30 
 644 nm   40.00   43.00 
 656 nm   39.90   43.00 
 664 nm   39.80   43.00 
Calculated Relative Intensity Colors of Xilingolite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 220%
R1                    
R2                    
 

Calculated Properties of Xilingolite

Help on Electron Density: Electron Density:

relectron=5.92 gm/cc
note: rXilingolite =7.18 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.11268
Boson Index = 0.88732
Help on Photoelectric: Photoelectric:

PEXilingolite =1,602.20 barns/electron
U=PEXilingolite x relectron=9,487.21 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Xilingolite is Not Radioactive

 

Xilingolite Classification

Help on  Dana Class: Dana Class: 3.4.16.1 (3)Sulfides - Sulfosalts
  (3.4)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.4.16)Dana Group
 
3.4.16.1 Xilingolite Pb3Bi2S6 C 2/m 2/m
Help on  Strunz Class: Strunz Class: II/E.31-10 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x) Lead-Sulfosalts (Pb-Cu/Ag) with predominant Vismut x = 6.0 - 1.6
  II/E.31 - Xilingolite - Gustavite series
 
II/E.31-10 Xilingolite Pb3Bi2S6 C 2/m 2/m
 
II/E.31-20 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m
 
II/E.31-30 Bursaite Pb5Bi4S11 Bbmm 2/m 2/m 2/m
 
II/E.31-40 Ourayite Pb4Ag3Bi5S13 Bbmm 2/m 2/m 2/m
 
II/E.31-50 Eskimoite Ag7Pb10Bi15S36 Am m
 
II/E.31-60 Vikingite Ag5Pb8Bi13S30 C 2/m 2/m
 
II/E.31-70 Schirmerite Ag3Pb3Bi9S18toAg3Pb6Bi7S18 Bbmm 2/m 2/m 2/m
 
II/E.31-80 Treasurite Ag7Pb6Bi15S32 B2/m 2/m
 
II/E.31-90 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m
 

Other Xilingolite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(AmMin, Vol 87, p 1513) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Xilingolite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Xilingolite

Pb3Bi2S6
Dana No: 3.4.16.1 Strunz No: II/E.31-10
Locality:

 

Notes:

 

 
   
 
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