Yushkinite Mineral Data + Say YUSHKINITE


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General Yushkinite Information

Help on Chemical  Formula: Chemical Formula: V1-xS·n(Mg,Al)(OH)2
Help on Composition: Composition: Molecular Weight = 87.39 gm
   Magnesium  11.88 %  Mg
   Aluminum    7.53 %  Al
   Vanadium   23.32 %  V
   Hydrogen    2.31 %  H
   Sulfur     18.35 %  S
   Oxygen     36.62 %  O
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: V3+0.4S0.50.61(Mg0.7)0.61(Al0.4)(OH)2
Help on Environment: Environment: In quartz-carbonate veins in carbonate rocks.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: From Pay-Khoy, in the middle stram of the Silova-Yakha River, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for N. P. Yushkin, Russian mineralogist.
 

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Yushkinite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:3.52024
Help on Cell Dimensions: Cell Dimensions: a = 3.21, c = 11.3, Z = 2; V = 100.84 Den(Calc)= 2.88
Help on Crystal System: Crystal System: Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: P 3m1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.68(1), 1.575(0.6), 2.76(0.6),
 

Physical Properties of Yushkinite

Help on Color: Color: Violet, Red lilac, Pinkish gray.
Help on Density: Density: 2.94
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Plastic - Deforms like soft, plastic materials.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Flakes - Flat, thin crystals or aggregates.
Help on Habit: Habit: Scaly - Morphology like fish scales.
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Metallic
Help on Streak: Streak: reddish gray
 

Optical Properties of Yushkinite

Help on RL Anisotrophism: RL Anisotrophism: Strong, orange-red with weak lilac tint in isotropic sections, red-lilac to pinkish dark gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Yushkinite in Air
λ R  ∑ R(λ) 
 440 nm   26.00   
 460 nm   22.40 
 480 nm   19.00 
 500 nm   17.60 
 520 nm   17.80 
 540 nm   18.70 
 560 nm   20.70 
 580 nm   23.30 
 600 nm   26.40 
 620 nm   29.60 
 640 nm   32.80 
 660 nm   35.70 
 680 nm   38.20 
 700 nm   40.10 
Calculated Relative Intensity Colors of Yushkinite in Air
Relative
Intensity
   0%   50% 100% 150% 200% 250% 300% 350% 400% 420%
R                    
 

Calculated Properties of Yushkinite

Help on Electron Density: Electron Density:

relectron=2.87 gm/cc
note: rYushkinite =2.88 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01401
Boson Index = 0.98599
Help on Photoelectric: Photoelectric:

PEYushkinite = 5.79 barns/electron
U=PEYushkinite x relectron= 16.61 barns/cc.

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

Yushkinite is Not Radioactive

 

Yushkinite Classification

Help on  Dana Class: Dana Class: 2.14.3.2 (2)Sulfides - Including Selenides and Tellurides
  (2.14)(Hydroxyl or Hydrated)
  (2.14.3)Dana Group
 
2.14.3.1 Haapalaite 2(Fe,Ni)S·1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m
 
2.14.3.2 Yushkinite V1-xS·n(Mg,Al)(OH)2 P 3m1 3m
Help on  Strunz Class: Strunz Class: II/C.23-10 II - Sulfides and sulphosalts
  II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
  II/C.23 - Yushkinite - Vyalsovite series
 
II/C.23-10 Yushkinite V1-xS·n(Mg,Al)(OH)2 P 3m1 3m
 
II/C.23-20 Valleriite 4(Fe,Cu)S·3(Mg,Al)(OH)2 R 3m 3 2/m
 
II/C.23-30 Haapalaite 2(Fe,Ni)S·1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m
 
II/C.23-40 Tochilinite 6Fe0.9S·5(Mg,Fe)(OH)2 P 2, Pm, or P 2/m Mono
 
II/C.23-50 Vyalsovite FeS·Ca(OH)2·Al(OH)3 C mmm ? 2/m 2/m 2/m
 

Other Yushkinite 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 Yushkinite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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

Yushkinite

V1-xS·n(Mg,Al)(OH)2
Dana No: 2.14.3.2 Strunz No: II/C.23-10
Locality:

 

Notes:

 

 
   
 
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