Mineralogy Database

Shuangfengite Mineral Data

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General Shuangfengite Information

Help on Chemical  Formula: Chemical Formula: IrTe2
Help on Composition: Composition: Molecular Weight = 447.42 gm
   Tellurium  57.04 %  Te
   Iridium    42.96 %  Ir
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: IrTe2
Help on Environment: Environment: Placer concentrates and crushed ores of a chromite deposit.
Help on IMA Status: IMA Status: Approved IMA 1994
Help on Locality: Locality: Located hear the village of Shuangfeng about 190 km NNE of Beijing, People's Republic of China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: After the locality.
Help on Name Pronunciation: Name Pronunciation: Shuangfengite + Pronunciation Say SHUANGFENGITE
Help on Synonym: Synonym: IMA1993-018
 

Shuangfengite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.37045
Help on Cell Dimensions: Cell Dimensions: a = 3.933, c = 5.39, Z = 1; V = 72.21 Den(Calc)= 10.29
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: P 3m1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.85(1), 2.1(0.8), 1.58(0.7),
 

Physical Properties of Shuangfengite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Black.
Help on Density: Density: 10.14
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Unknown - Minerals too small to observe fractures.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Shuangfengite

Help on RL Anisotrophism: RL Anisotrophism: Moderate with bluish or yellowish tint.
Help on RL Bireflectance: RL Bireflectance: Not obvious.
Help on RL Color: RL Color: Bright yellowish white with bluish tint.
Help on RL Pleochroism: RL Pleochroism: Not obvious.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Shuangfengite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   45.50   41.80 
   
 550 nm   45.40   41.80 
 590 nm   45.50   42.20 
 650 nm   46.00   42.90 
Calculated Relative Intensity Colors of Shuangfengite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210%
R1                  
R2                  
 

Calculated Properties of Shuangfengite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=8.33 gm/cc
note: Specific Gravity of Shuangfengite =10.3 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEShuangfengite = 874.06 barns/electron
U=PEShuangfengite x rElectron Density=7,276.98 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Shuangfengite is Not Radioactive
 

Shuangfengite Classification

Help on  Dana Class: Dana Class: 02.12.14.06 (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.14)Melonite Group (Trigonal: P-3m1) AX2 type
 
02.12.14.01 Melonite NiTe2 P 3m1 3 2/m
 
02.12.14.02 Kitkaite NiTeSe P 3m1 3 2/m
 
02.12.14.03 Moncheite (Pt,Pd)(Te,Bi)2 P 3m1 3 2/m
 
02.12.14.04 Merenskyite (Pd,Pt)(Te,Bi)2 P 3m1 3m
 
02.12.14.05 Berndtite SnS2 P 3m1 3 2/m
 
02.12.14.06 Shuangfengite IrTe2 P 3m1 3 2/m
 
02.12.14.07 Sudovikovite! PtSe2 P 3m1 3 2/m
Help on  Strunz Class: Strunz Class: 02.EA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.E - Metal Sulfides, M:S � 1:2
  02.EA -M:S = 1:2
 
02.EA.20 Berndtite SnS2 P 3m1 3 2/m
 
02.EA.20 Merenskyite (Pd,Pt)(Te,Bi)2 P 3m1 3m
 
02.EA.20 Melonite NiTe2 P 3m1 3 2/m
 
02.EA.20 Kitkaite NiTeSe P 3m1 3 2/m
 
02.EA.20 Moncheite (Pt,Pd)(Te,Bi)2 P 3m1 3 2/m
 
02.EA.20 Sudovikovite! PtSe2 P 3m1 3 2/m
 
02.EA.20 Shuangfengite IrTe2 P 3m1 3 2/m
 

Other Shuangfengite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.80,p1329,1995) OPTIC PROP.(MinRec, v 27, p 120)
Help on See Also: See Also: Links to other databases for Shuangfengite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST

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

Shuangfengite

IrTe2
Dana No: 02.12.14.06 Strunz No: 02.EA.20
Locality:

 

Notes:

 

 
   
 


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