Kashinite Mineral Data + Say KASHINITE


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General Kashinite Information
Help on Chemical Formula: Chemical Formula: (Ir,Rh)2S3
Help on Composition: Composition: Molecular Weight = 435.98 gm
   Iridium  66.13 %  Ir
   Rhodium  11.80 %  Rh
   Sulfur   22.06 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: Ir1.5Rh0.5S3
Help on Environment: Environment: In placer deposits derived from ultramafic rocks on the rims of platinium or iridium grains.
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: From placers around Nizhni Tagil, Ural Mountains, and at unidentified ultramafic massif in the Far Eastern Region, USSR. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: To honor S.A. Kashin, a Russian investigator of ore deposits in the Ural Mountains.
 

Kashinite Image

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Click Here for Larger Kashinite Image

Kashinite   Laurite

Comments: Gray kashinite with darker gray laurite. Polished section (from microprobe analysis) in reflected light.
Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Picture size 0.2 mm.
© Thomas Witzke / Abraxas-Verlag

Kashinite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.408:1:1.0239
Help on Cell Dimensions: Cell Dimensions: a = 8.45, b = 6.001, c = 6.145, Z = 4; V = 311.60 Den(Calc)= 9.29
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bcn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.99(1), 1.736(0.6), 2.14(0.4),
 

Physical Properties of Kashinite

Help on Cleavage: Cleavage: None
Help on Color: Color: Gray, Black.
Help on Density: Density: 9.1
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 7.5 - Garnet
Help on Luster: Luster: Metallic
 

Optical Properties of Kashinite

Help on RL Anisotrophism: RL Anisotrophism: Moderate to strong with reddish violet tints.
Help on RL Color: RL Color: Light gray.
Help on RL Pleochroism: RL Pleochroism: Weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Kashinite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 440 nm   43.70   45.90 
   
 460 nm   45.10   45.50 
 480 nm   46.10   45.50 
 500 nm   46.80   45.60 
 520 nm   47.20   45.70 
 540 nm   47.50   45.80 
 560 nm   47.60   46.00 
 580 nm   47.60   46.20 
 600 nm   47.40   46.30 
 620 nm   47.10   46.50 
 640 nm   46.80   46.60 
 660 nm   46.60   46.80 
 680 nm   46.30   46.90 
 700 nm   46.00   47.00 
Calculated Relative Intensity Colors of Kashinite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 200%
R1                  
R2                  
 

Calculated Properties of Kashinite

Help on Electron Density: Electron Density:

relectron=7.93 gm/cc
note: rKashinite =9.29 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.00165
Boson Index = 0.99835
Help on Photoelectric: Photoelectric:

PEKashinite = 988.68 barns/electron
U=PEKashinite x relectron=7,836.92 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Kashinite is Not Radioactive
 

Kashinite Classification
Help on Dana Class: Dana Class: 2.11.12.2 (2)Sulfides - Including Selenides and Tellurides
  (2.11)where Am Bn Xp, with (m+n):p=2:3
  (2.11.12)Dana Group
 
2.11.12.1 Bowieite (Rh,Ir,Pt)1.77S3 Pnca 2/m 2/m 2/m
 
2.11.12.2 Kashinite (Ir,Rh)2S3 P bcn 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: II/D.06-10 II - Sulfides and sulphosalts
  II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold
  II/D.06 - Kashinite series
 
II/D.06-10 Kashinite (Ir,Rh)2S3 P bcn 2/m 2/m 2/m
 
II/D.06-20 Bowieite (Rh,Ir,Pt)1.77S3 Pnca 2/m 2/m 2/m
 
II/D.06-30 Daomanite* CuPtAsS2 Ama2 mm2
 

Other Kashinite 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 Kashinite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Kashinite

(Ir,Rh)2S3
Dana No: 2.11.12.2 Strunz No: II/D.06-10
Locality:

 

Notes:

 
 
   
 
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