Mineralogy Database

Jamesonite Mineral Data

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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 Name Pronunciation: Name Pronunciation: Jamesonite + Pronunciation Say JAMESONITE
Help on Synonym: Synonym: Comuccite
  ICSD 24256
  PDF 42-1391
  Parajamesonite - mixture of jamesonite + other sulfosalts
  Sakharovaite - Bi-bearing jamesonite
 

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 - Prismatic H-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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Help on Above

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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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 Diaphaneity: Diaphaneity: 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: Non-fluorescent.
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: Bulk Density (Electron Density)=4.94 gm/cc
note: Specific Gravity of Jamesonite =5.77 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PEJamesonite = 843.35 barns/electron
U=PEJamesonite x rElectron Density=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: 03.06.07.01 (03)Sulfides - Sulfosalts
  (03.06)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.06.07)Dana Group
 
03.06.07.01 Jamesonite Pb4FeSb6S14 P 21/a 2/m
 
03.06.07.02 Benavidesite Pb4(Mn,Fe)Sb6S14 P 21/a 2/m
Help on  Strunz Class: Strunz Class: 02.HB.15 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.H - Sulfosalts of SnS Archetype
  02.HB -With Cu, Ag, Hg, Fe, Sn and Pb
 
02.HB.15 Benavidesite Pb4(Mn,Fe)Sb6S14 P 21/a 2/m
 
02.HB.15 Jamesonite Pb4FeSb6S14 P 21/a 2/m
 

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 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Glendale Community College
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - HyperPhysics
13 - MinDAT
14 - Mineralienatlas (Deutsch)
15 - Online Mineral Museum
16 - QUT Mineral Atlas
17 - Ruff.Info
18 - WWW-MINCRYST
19 - YupRocks

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Jamesonite

Pb4FeSb6S14
Dana No: 03.06.07.01 Strunz No: 02.HB.15
Locality:

 

Notes:

 

 
   
 


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