Mineralogy Database

Zoubekite Mineral Data

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General Zoubekite Information

Help on Chemical  Formula: Chemical Formula: AgPb4Sb4S10
Help on Composition: Composition: Molecular Weight = 1,744.33 gm
   Silver     6.18 %  Ag
   Antimony  27.92 %  Sb
   Lead      47.51 %  Pb
   Sulfur    18.38 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: AgPb4Sb4S10
Help on Environment: Environment: In hydrothermal veins.
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Pribram, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vladimir Zoubek (1903-), Czech geologist.
Help on Name Pronunciation: Name Pronunciation: Zoubekite + Pronunciation Say ZOUBEKITE
 

Zoubekite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.8801:1:0.705
Help on Cell Dimensions: Cell Dimensions: a = 18.698, b = 6.492, c = 4.577, Z = 1; V = 555.59 Den(Calc)= 5.21
Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.797(1), 1.325(0.8), 2.222(0.8),
 

Physical Properties of Zoubekite

Help on Cleavage: Cleavage: None
Help on Color: Color: Steel gray.
Help on Density: Density: 5.15
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Zoubekite

Help on Optical Data: Optical Data: NCalc= 1.41 - from Gladstone-Dale relationship (KC = 0.0792) where Ncalc=Dcalc*KC+1
NCalc= 1.41 - from Gladstone-Dale relationship (KC = 0.0792) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Strong, from light to dark gray with a faint greenish tint.
Help on RL Color: RL Color: White with a faint yellowish tint to light gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Zoubekite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 420 nm   38.60   44.30 
   
 440 nm   38.50   44.00 
 460 nm   38.40   44.00 
 480 nm   38.00   43.70 
 500 nm   37.90   43.80 
 520 nm   37.90   43.90 
 540 nm   37.60   43.60 
 560 nm   37.40   43.10 
 580 nm   36.90   42.60 
 600 nm   36.50   41.90 
 620 nm   36.20   41.50 
 640 nm   35.60   40.90 
 660 nm   35.40   40.20 
 680 nm   34.90   39.20 
 700 nm   34.20   38.10 
Calculated Relative Intensity Colors of Zoubekite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 250%
R1                      
R2                      
 

Calculated Properties of Zoubekite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.41 gm/cc
note: Specific Gravity of Zoubekite =5.21 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.1
Boson Index = 0.9
Help on Photoelectric: Photoelectric: PEZoubekite = 975.46 barns/electron
U=PEZoubekite x rElectron Density=4,306.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zoubekite is Not Radioactive
 

Zoubekite Classification

Help on  Dana Class: Dana Class: 03.05.14.01 (03)Sulfides - Sulfosalts
  (03.05)where 2.5 < z/y < 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.05.14)Dana Group
 
03.05.14.01 Zoubekite AgPb4Sb4S10 Unk Ortho
Help on  Strunz Class: Strunz Class: 02.HC.35 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.H - Sulfosalts of SnS Archetype
  02.HC -With only Pb
 
02.HC.35 Owyheeite Pb7Ag2(Sb,Bi)8S20 Pnam 2/m 2/m 2/m
 
02.HC.35 Zoubekite AgPb4Sb4S10 Unk Ortho
 

Other Zoubekite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Zoubekite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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

Zoubekite

AgPb4Sb4S10
Dana No: 03.05.14.01 Strunz No: 02.HC.35
Locality:

 

Notes:

 

 
   
 


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