Jamesonite Mineral Data + Say JAMESONITE

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General Jamesonite Information

Help on Chemical  Formula: Chemical Formula: Pb4FeSb6S14
Help on Composition: Composition: Molecular Weight = 2,064.07 gm
   Iron       2.71 %  Fe
   Antimony  35.39 %  Sb
   Lead      40.15 %  Pb
   Sulfur    21.75 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Pb4Fe2+Sb6S14
Help on Environment: Environment: Usually a late stage hydrothermal mineral in Pb-Ag-Zn veins formed at low to moderate temperatures.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1825
Help on Locality: Locality: Cornwall, England, UK Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the Scottish Mineralogist, R. Jameson (1774-1854).
Help on Synonym: Synonym: Comuccite
  ICSD 24256
  PDF 42-1391
 

Jamesonite Image

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Jamesonite

Comments: Metallic, hair-like, crystals of jamesonite on matrix.
Location: Baie Sprie (Felsobanya), Maraures, Romania. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Jamesonite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8145:1:0.2117
Help on Cell Dimensions: Cell Dimensions: a = 15.5, b = 19.03, c = 4.03, Z = 2; beta = 91.8° V = 1,188.12 Den(Calc)= 5.77
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.43(1), 2.813(0.35), 3.7(0.35),
Help on Forms: Forms:

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Forms: [ 2 0 1] [ 0 1 0] [ 0 1 1] [ 1 2 0] [ 1 0 0] [ 1 1 0] [ 0 0 1]

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Niizeki N , Buerger M J , Zeitschrift fur Kristallographie , 109 (1957) p.161-183, The crystal structure of jamesonite, FePb4Sb6S14

 

Physical Properties of Jamesonite

Help on Cleavage: Cleavage: [001] Perfect
Help on Color: Color: Lead gray, Steel gray, Dark lead gray.
Help on Density: Density: 5.5 - 5.63, Average = 5.56
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Massive - Fibrous - Distinctly fibrous fine-grained forms.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: black. grayish
 

Optical Properties of Jamesonite

Help on RL Anisotrophism: RL Anisotrophism: Strong.
Help on RL Color: RL Color: Gray, blackish.
Help on RL Pleochroism: RL Pleochroism: Distinct.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Jamesonite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   37.60   42.50 
   
 420 nm   36.80   42.20 
 440 nm   36.00   41.90 
 460 nm   35.60   41.50 
 480 nm   35.40   41.20 
 500 nm   35.00   40.70 
 520 nm   34.60   40.30 
 540 nm   34.00   39.80 
 560 nm   33.60   39.30 
 580 nm   33.10   38.80 
 600 nm   32.70   38.20 
 620 nm   32.20   37.70 
 640 nm   31.80   37.00 
 660 nm   31.50   36.40 
 680 nm   31.20   35.70 
 700 nm   31.00   35.00 
Calculated Relative Intensity Colors of Jamesonite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270%
R1                      
R2                      
 

Calculated Properties of Jamesonite

Help on Electron Density: Electron Density:

relectron=4.94 gm/cc
note: rJamesonite =5.77 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.09094
Boson Index = 0.90906
Help on Photoelectric: Photoelectric:

PEJamesonite = 843.35 barns/electron
U=PEJamesonite x relectron=4,168.13 barns/cc.

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

Jamesonite is Not Radioactive

 

Jamesonite Classification

Help on  Dana Class: Dana Class: 3.6.7.1 (3)Sulfides - Sulfosalts
  (3.6)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.6.7)Dana Group
 
3.6.7.1 Jamesonite Pb4FeSb6S14 P 21/a 2/m
 
3.6.7.2 Benavidesite Pb4(Mn,Fe)Sb6S14 P 21/a 2/m
Help on  Strunz Class: Strunz Class: II/E.22-10 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x) Complex Lead-Sulfosalts (Pb-Fe/Mn, Pb-Ag), with predominant Antimon x = 2.3 - 2.0
  II/E.22 - Jamesonite - Sakharovaite series
 
II/E.22-10 Jamesonite Pb4FeSb6S14 P 21/a 2/m
 
II/E.22-20 Benavidesite Pb4(Mn,Fe)Sb6S14 P 21/a 2/m
 
II/E.22-30 Parajamesonite Pb4FeSb6S14 Unk Ortho
 
II/E.22-40 Sakharovaite (Pb,Fe)(Bi,Sb)2S4 Mono
 

Other Jamesonite 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 Jamesonite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 - Glendale Community College 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (UofA) 10 - HyperPhysics 11 -MinDAT 12 -MinMax(Deutsch) 13 -MinMax(English) 14 -Mineralienatlas (Deutsch) 15 - Minerals of Wisconsin 16 -QUT Mineral Atlas 17 - WWW-MINCRYST 18 - YupRocks 19 -École des Mines de Paris

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Jamesonite

Pb4FeSb6S14
Dana No: 3.6.7.1 Strunz No: II/E.22-10
Locality:

 

Notes:

 

 
   
 
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