Mineralogy Database

Iridisite Mineral Data

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General Iridisite Information

Help on Chemical  Formula: Chemical Formula: (Ir,Cu,Rh,Ni,Pt)S2
Help on Composition: Composition: Molecular Weight = 186.82 gm
   Copper    10.20 %  Cu
   Nickel     3.14 %  Ni
   Iridium   30.87 %  Ir
   Platinum  10.44 %  Pt
   Rhodium   11.02 %  Rh
   Sulfur    34.33 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Ir0.3Cu0.3Rh0.2Ni0.1Pt0.1S2
Help on Environment: Environment: Heavy mineral concentrate from placers derived from nearby ultramafic rocks.
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Unstated locality in China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name is intended to distinguish the mineral from "normal" iridium sulfide.
 

Iridisite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 5.635, Z = 8; V = 178.93 Den(Calc)= 13.87
Help on Crystal System: Crystal System: Isometric Space Group: Unk
 

Physical Properties of Iridisite

Help on Color: Color: Steel gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 7 - Quartz
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Iridisite

Help on RL Anisotrophism: RL Anisotrophism: None.
Help on RL Bireflectance: RL Bireflectance: None.
Help on RL Color: RL Color: Grayish brownish white.
Help on RL Pleochroism: RL Pleochroism: None.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Iridisite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 402 nm   43.70   43.40 
   
 439 nm   45.40   44.00 
 480 nm   45.40   44.10 
 495 nm   46.30   44.40 
 546 nm   47.30   44.70 
 590 nm   47.30   44.80 
 624 nm   47.40   45.20 
 644 nm   47.10   45.40 
 657 nm   46.70   44.70 
Calculated Relative Intensity Colors of Iridisite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 200%
R1                  
R2                  
 

Calculated Properties of Iridisite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=12.4 gm/cc
note: Specific Gravity of Iridisite =13.9 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEIridisite = 612.17 barns/electron
U=PEIridisite x rElectron Density=7,580.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Iridisite is Not Radioactive
 

Iridisite Classification

Help on  Dana Class: Dana Class: 02.00.00.00 (02)Sulfide Minerals
  (02.00)Without Dana Classification Numbers
  (02.00.00)Sulfide
 
02.00.00.00 Argentite* Ag2S I m3m 4/m 3 2/m
 
02.00.00.00 Bayankhanite? Cu6HgS4 Unk Hex
 
02.00.00.00 Bismutoplagionite* 5PbS.4Bi2S3 Unk Ortho
 
02.00.00.00 Bravoite? (Fe,Ni,Co)S2 P a3 2/m 3
 
02.00.00.00 Colimaite K3VS4 P nma 2/m 2/m 2/m
 
02.00.00.00 Dayingite* CuCoPtS4 F m3m 4/m 3 2/m
 
02.00.00.00 Dilithium* Li2Te P 222 2 2 2
 
02.00.00.00 Dzhezkazganite* (Pb,Cu,Rh)S2(?) P a3? 2/m 3
 
02.00.00.00 Ferdisilicite* FeSi2 P 4/mmm 4/m 2/m 2/m
 
02.00.00.00 Fersilicite* FeSi P 213 2 3
 
02.00.00.00 Horobetsuite* (Bi,Sb)2S3 Pbnm 2/m 2/m 2/m
 
02.00.00.00 Horomanite Fe6Ni3S8 P 4/mmm 4mm
 
02.00.00.00 Imgreite? NiTe P 63/mmc 6/m 2/m 2/m
 
02.00.00.00 Iridisite* (Ir,Cu,Rh,Ni,Pt)S2 Unk Cubic
 
02.00.00.00 Isochalcopyrite? Cu8Fe9S16 Unk Cubic
 
02.00.00.00 Jaipurite* CoS P 63/mmc 6/m 2/m 2/m
 
02.00.00.00 Kitaibelite? Ag10PbBi30S51 Mono ? Mono
 
02.00.00.00 Kurilite? (Ag,Au)2(Te,Se,S) P m3n,P 43n Cubic
 
02.00.00.00 Plumosite* Pb2Sb2S5 Mono
 
02.00.00.00 Protojoseite* Bi4TeS2(?) R 3m 3 2/m
 
02.00.00.00 Samaniite Cu2Fe5Ni2S8 P 41/mmm 4mm
 
02.00.00.00 Stibioenargite* Cu3(Sb,As)S4 Unk Ortho
 
02.00.00.00 Sztrokayite* Bi3TeS2 Trig ? Trig
 
02.00.00.00 Volfsonite* Cu10CuFeFe2Sn3S16 P 42m-,P 4212 Tetra
Help on  Strunz Class: Strunz Class: 02.XX.00 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.X - Unclassified Strunz SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarse
  02.XX -Sulfide
 
02.XX.00 Isochalcopyrite? Cu8Fe9S16 Unk Cubic
 
02.XX.00 Bayankhanite? Cu6HgS4 Unk Hex
 
02.XX.00 Bravoite? (Fe,Ni,Co)S2 P a3 2/m 3
 
02.XX.00 Dzhezkazganite* (Pb,Cu,Rh)S2(?) P a3? 2/m 3
 
02.XX.00 Dilithium* Li2Te P 222 2 2 2
 
02.XX.00 Horobetsuite* (Bi,Sb)2S3 Pbnm 2/m 2/m 2/m
 
02.XX.00 Horsfordite? Cu5Sb Unk Cubic
 
02.XX.00 Kurilite? (Ag,Au)2(Te,Se,S) P m3n,P 43n Cubic
 
02.XX.00 Imgreite? NiTe P 63/mmc 6/m 2/m 2/m
 
02.XX.00 Matraite? ZnS R 3m 3m
 
02.XX.00 Iridisite* (Ir,Cu,Rh,Ni,Pt)S2 Unk Cubic
 
02.XX.00 Kitaibelite? Ag10PbBi30S51 Mono ? Mono
 
02.XX.00 Jeromite? As(S,Se)2 None
 
02.XX.00 Parajamesonite? Pb4FeSb6S14 Unk Ortho
 
02.XX.00 Volfsonite* Cu10CuFeFe2Sn3S16 P 42m-,P 4212 Tetra
 
02.XX.00 Prassoite Rh17S15(?) P m3m 4/m 3 2/m
 
02.XX.00 Sakharovaite? (Pb,Fe)(Bi,Sb)2S4 Mono
 
02.XX.00 Samaniite Cu2Fe5Ni2S8 P 41/mmm 4mm
 
02.XX.00 Tazieffite! Pb20Cd2(As,Bi)22S50Cl10 C 2/c 2/m
 
02.XX.00 Horomanite Fe6Ni3S8 P 4/mmm 4mm
 

Other Iridisite Information

Help on References: References: NAME( AmMin v74:1215) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(AmMin v74:1215)
Help on See Also: See Also: Links to other databases for Iridisite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Iridisite

(Ir,Cu,Rh,Ni,Pt)S2
Dana No: 02.00.00.00 Strunz No: 02.XX.00
Locality:

 

Notes:

 

 
   
 


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