Pellouxite Mineral Data


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General Pellouxite Information

Help on Chemical  Formula: Chemical Formula: (Cu,Ag)Pb10Sb12S27(Cl,S)0.6O
Help on Composition: Composition: Molecular Weight = 4,532.07 gm
   Copper     0.90 %  Cu
   Silver     0.60 %  Ag
   Antimony  31.27 %  Sb
   Lead      47.36 %  Pb
   Sulfur    19.15 %  S
   Chlorine   0.33 %  Cl
   Oxygen     0.39 %  O
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu0.64Ag0.25Pb10.36Sb11.64S27.07Cl0.42O1.11
Help on Environment: Environment: In cavities of calcite veins. Structurally related to scainiite.
Help on IMA Status: IMA Status: Approved IMA 2004 ( Dana # Added)
Help on Locality: Locality: Fe-Ba deposit of Buca della Vena mine, Apuan Alps (Tuscany, Italy). Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Alberto Pelloux (1868-1948), curator of the mineralogical Museum at the University of Genova.
Help on Synonym: Synonym: IMA2001-033
 

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Pellouxite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =13.6515:1:5.9004
Help on Cell Dimensions: Cell Dimensions: a = 55.824, b = 4.0892, c = 24.128, Z = 4; beta = 113.15° V = 5,064.33 Den(Calc)= 5.94
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): 3.423(1)(807,16.0.4,407), 4.02(0.38)(606,406), 3.562(0.31)(804,12.0.2),2.948(0.27)(13.1.3,11.1.13.009(0.25)(808,912,713), 2.048(0.2)(020), 2.265(0.19)(409),
Click Here for Large Pellouxite Structure Window Crystal Structure:

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Palvadeau P , Meerschaut A , Orlandi P , Moelo Y , European Journal of Mineralogy , 16 (2004) p.845-855, Lead-antimony sulfosalts from Tuscany (Italy). VII. Crystal structure of, pellouxite, ~ (Cu,Ag)2Pb21Sb23S55ClO, an expanded monoclinic derivative, of Ba12Bi24S48 hexagonal sub-type (zinkenite group), Locality: Tuscany, Italy

 

Physical Properties of Pellouxite

Help on Color: Color: Black.
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).
Help on Luster: Luster: Metallic
 

Optical Properties of Pellouxite

Help on Optical Data: Optical Data: NCalc= 1.43 - from Gladstone-Dale relationship (KC = 0.0723) where Ncalc=Dcalc*KC+1
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Pellouxite in Air
λ R  ∑ R(λ) 
 470 nm   38.00   
 546 nm   37.30 
 589 nm   36.90 
 650 nm   35.20 
Standardized Intensity (100%) Reflection Spectra of Pellouxite in Oil
λ R  ∑ R(λ) 
 470 nm   23.80   
 546 nm   22.40 
 589 nm   21.50 
 650 nm   19.60 
Calculated Relative Intensity Colors of Pellouxite in Air
Relative
Intensity
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R                      
Calculated Relative Intensity Colors of Pellouxite in Oil
Relative
Intensity
   0%   50% 100% 150% 200% 250% 300% 350% 400% 420%
R                    
 

Calculated Properties of Pellouxite

Help on Electron Density: Electron Density:

relectron=5.04 gm/cc
note: rPellouxite =5.94 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.10611
Boson Index = 0.89389
Help on Photoelectric: Photoelectric:

PEPellouxite = 968.58 barns/electron
U=PEPellouxite x relectron=4,881.41 barns/cc.

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

Pellouxite is Not Radioactive

 

Pellouxite Classification

Help on  Dana Class: Dana Class: 3.8.1.3 (3)Sulfides - Sulfosalts
  (3.8)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.8.1)Dana Group
 
3.8.1.1 Zinkenite Pb9Sb22S42 P 63 6
 
3.8.1.2 Pillaite! Pb9Sb10S23ClO0.5 C 2/m 2/m
 
3.8.1.3 Pellouxite ! (Cu,Ag)Pb10Sb12S27(Cl,S)0.6O C 2/m 2/m
Help on  Strunz Class: Strunz Class: II/E.20-25 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x), Sulfosalts with predominant Iron and Copper x = 2.0
  II/E.20 - Madocite - Dadsonite series
 
II/E.20-10 Madocite Pb17(Sb,As)16S41 Pb2a mm2
 
II/E.20-20 Launayite Pb22Sb26S61 C 2/m 2/m
 
II/E.20-25 Pellouxite (Cu,Ag)Pb10Sb12S27(Cl,S)0.6O C 2/m 2/m
 
II/E.20-30 Sterryite Ag2Pb10(Sb,As)12S29 Pbam 2/m 2/m 2/m
 
II/E.20-40 Playfairite Pb16Sb18S43 P 21/m 2/m
 
II/E.20-50 Sorbyite Pb19(Sb,As)20S49 C 2/m 2/m
 
II/E.20-60 Dadsonite Pb21Sb23S55Cl P 2,Pm,P 2/m Mono
 

Other Pellouxite Information

Help on References: References: NAME( EurJMin, 16:839) PHYS. PROP.(EurJMin, 16:839) OPTIC PROP.(EurJMin, 16:839)
Help on See Also: See Also: Links to other databases for Pellouxite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Pellouxite

(Cu,Ag)Pb10Sb12S27(Cl,S)0.6O
Dana No: 3.8.1.3 Strunz No: II/E.20-25
Locality:

 

Notes:

 

 
   
 
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