Zinkenite Mineral Data + Say ZINKENITE


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General Zinkenite Information
Help on Chemical Formula: Chemical Formula: Pb9Sb22S42
Help on Composition: Composition: Molecular Weight = 5,890.07 gm
   Antimony  45.47 %  Sb
   Lead      31.66 %  Pb
   Sulfur    22.87 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Pb9Sb22S42
Help on Environment: Environment: Constituent mineral in hydrothermal veins associated with base metal deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1826
Help on Locality: Locality: Wolfsberg, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the mineralogist, J. K. L. Zincken (1798-1862).
Help on Synonym: Synonym: ICSD 61191
  PDF 45-1424
  Zinckenite
 

Zinkenite Image

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Zinkenite

Comments: Jackstraw zinkenite crystals. Individual crystals reach up to 2 cm in length.
Location: Monserrat Mine, Antequera, Oruro, Bolivia. Scale: 4.5 x 3.2 cm.
© John Veevaert
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Zinkenite   Stannite

Comments: Acicular crystals of zinkenite perched on a twinned, crystal of stannite.
Location: Mina San Jos?, Oruro, Bolivia. Scale: 4 x 2.3 x 1.7 cm.
© Fabre Minerals

Zinkenite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:0.19528
Help on Cell Dimensions: Cell Dimensions: a = 44.14, c = 8.62, Z = 8; V = 14,544.63 Den(Calc)= 5.38
Help on Crystal System: Crystal System: Hexagonal - PyramidalH-M Symbol (6) Space Group: P 63
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.45(1), 2.8(0.4), 1.828(0.3),1.985(0.3), 2.06(0.2), 2.13(0.2), 3.02(0.2),
Help on Forms: Forms:

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

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Portheine J C , Nowacki W , Zeitschrift fur Kristallographie , 141 (1975) p.79-96, Refinement of the crystal structure of zinckenite, Pb6Sb14S27, Sample: Bolivar mine, Cerro Bonete, Bolivia

 

Physical Properties of Zinkenite

Help on Cleavage: Cleavage: [1120] Imperfect
Help on Color: Color: Gray, Steel gray.
Help on Density: Density: 5.12 - 5.35, Average = 5.23
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: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: steel gray
 

Optical Properties of Zinkenite

Help on RL Anisotrophism: RL Anisotrophism: Distinct.
Help on RL Color: RL Color: Gray-white.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Zinkenite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   39.10   44.20 
   
 420 nm   39.20   44.40 
 440 nm   39.30   44.60 
 460 nm   39.20   44.50 
 480 nm   39.00   44.20 
 500 nm   38.80   43.80 
 520 nm   38.40   43.20 
 540 nm   37.90   42.50 
 560 nm   37.30   41.80 
 580 nm   36.70   41.00 
 600 nm   36.00   40.40 
 620 nm   35.40   39.80 
 640 nm   34.60   39.00 
 660 nm   34.00   38.20 
 680 nm   33.20   37.30 
 700 nm   32.40   36.30 
Calculated Relative Intensity Colors of Zinkenite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 250%
R1                      
R2                      
 

Calculated Properties of Zinkenite

Help on Electron Density: Electron Density:

relectron=4.63 gm/cc
note: rZinkenite =5.38 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.07168
Boson Index = 0.92832
Help on Photoelectric: Photoelectric:

PEZinkenite = 722.21 barns/electron
U=PEZinkenite x relectron=3,340.56 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Zinkenite is Not Radioactive
 

Zinkenite Classification
Help on Dana Class: Dana Class: 3.8.1.1 (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.26-10 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x) Lead-Sulfosalts with Arsen and Antimon x = 2.3 - 1.8
  II/E.26 - Zinkenite series
 
II/E.26-10 Zinkenite Pb9Sb22S42 P 63 6
 
II/E.26-20 Scainiite! Pb14Sb30S54O5 C 2/m 2/m
 

Other Zinkenite Information
Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Zinkenite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - EUROmin Project 5 - Franklin Minerals(Dunn) 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 - HyperPhysics 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 -Mineralienatlas (Deutsch) 14 -QUT Mineral Atlas 15 -École des Mines de Paris

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Zinkenite

Pb9Sb22S42
Dana No: 3.8.1.1 Strunz No: II/E.26-10
Locality:

 

Notes:

 
 
   
 
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