Berthierite Mineral Data + Say BERTHIERITE


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General Berthierite Information
Help on Chemical Formula: Chemical Formula: FeSb2S4
Help on Composition: Composition: Molecular Weight = 427.61 gm
   Iron      13.06 %  Fe
   Antimony  56.94 %  Sb
   Sulfur    30.00 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Fe2+Sb2S4
Help on Environment: Environment: In low-temperature hydrothermal antimony veins.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1827
Help on Locality: Locality: Pontgibaud, Puy-de-Dome, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the French chemist, P. Berthier (1782-1861).
Help on Synonym: Synonym: Anglarite
  Chazellite
  Martourite
 

Berthierite Image

Click Here for Larger Berthierite Image in a New Browser Window Images:
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Berthierite

Comments: Prismatic crystals of berthierite, tarnished bronze metallic, with stibnite and quartz crystals.
Location: San Martin Mine, Zacatecas, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Berthierite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8101:1:0.2662
Help on Cell Dimensions: Cell Dimensions: a = 11.44, b = 14.12, c = 3.76, Z = 4; V = 607.36 Den(Calc)= 4.68
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnam
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.68(1), 2.63(0.8), 4.37(0.6),
Click Here for Large Berthierite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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H - Help Screen
I - Data Info
A - Atoms On/Off
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B - Bonds On/Off
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Buerger M J , American Mineralogist , 21 (1936) p.205-206, The crystal structure of berthierite

View Additional jPOWD Structure files for Berthierite
[1] [2]
 

Physical Properties of Berthierite

Help on Cleavage: Cleavage: [010] Good
Help on Color: Color: Dark steel gray, Dark brownish gray.
Help on Density: Density: 4 - 4.6, Average = 4.3
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Metallic
Help on Streak: Streak: brownish gray
 

Optical Properties of Berthierite

Help on RL Anisotrophism: RL Anisotrophism: Strong.
Help on RL Color: RL Color: Gray.
Help on RL Pleochroism: RL Pleochroism: Marked.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Berthierite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   33.00   43.00 
   
 420 nm   32.40   42.80 
 440 nm   31.80   42.60 
 460 nm   31.30   42.30 
 480 nm   31.00   42.00 
 500 nm   30.80   41.60 
 520 nm   30.80   41.20 
 540 nm   30.90   40.80 
 560 nm   31.20   40.30 
 580 nm   31.50   39.80 
 600 nm   31.70   39.40 
 620 nm   31.90   39.00 
 640 nm   32.00   38.70 
 660 nm   32.00   38.30 
 680 nm   31.90   38.00 
 700 nm   31.60   37.60 
Calculated Relative Intensity Colors of Berthierite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270% 290%
R1                        
R2                        
 

Calculated Properties of Berthierite

Help on Electron Density: Electron Density:

relectron=4.20 gm/cc
note: rBerthierite =4.68 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.00501
Boson Index = 0.99499
Help on Photoelectric: Photoelectric:

PEBerthierite = 192.42 barns/electron
U=PEBerthierite x relectron= 808.70 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Berthierite is Not Radioactive
 

Berthierite Classification
Help on Dana Class: Dana Class: 3.7.9.3 (3)Sulfides - Sulfosalts
  (3.7)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.7.9)Dana Group
 
3.7.9.1 Galenobismutite PbBi2S4 Pnam 2/m 2/m 2/m
 
3.7.9.2 Sakharovaite (Pb,Fe)(Bi,Sb)2S4 Mono
 
3.7.9.3 Berthierite FeSb2S4 Pnam 2/m 2/m 2/m
 
3.7.9.4 Garavellite FeSbBiS4 Pnam 2/m 2/m 2/m
 
3.7.9.5 Clerite! MnSb2S4 Pnam 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: II/E.01-10 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x), Sulfosalts with predominant Iron and Copper x = 2.0
  II/E.01 - Berthierite - Garavellite series
 
II/E.01-05 Clerite! MnSb2S4 Pnam 2/m 2/m 2/m
 
II/E.01-10 Berthierite FeSb2S4 Pnam 2/m 2/m 2/m
 
II/E.01-20 Garavellite FeSbBiS4 Pnam 2/m 2/m 2/m
 

Other Berthierite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Berthierite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 - Franklin Minerals(Dunn) 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 -QUT Mineral Atlas 16 - WWW-MINCRYST 17 -École des Mines de Paris

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Print or Cut-and-Paste your Berthierite Specimen Label here :

Berthierite

FeSb2S4
Dana No: 3.7.9.3 Strunz No: II/E.01-10
Locality:

 

Notes:

 
 
   
 
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