Iridarsenite  Mineral Data

Iridarsenite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About

Advertisment

[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts]
See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM]
Mineral News was founded some twenty years ago and has developed a following of
avid mineral collectors seeking timely information about new finds and other items
of interest to the collector community. Articles are solicited from collector and scientific authors.


General Iridarsenite Information

Help on Chemical  Formula: Chemical Formula: (Ir,Ru)As2
Help on Composition: Composition: Molecular Weight = 319.28 gm
   Arsenic    46.93 %  As
   Iridium    45.15 %  Ir
   Ruthenium   7.91 %  Ru
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Ir0.75Ru0.25As2
Help on Environment: Environment: In nuggets or fragments of natural Os-Ir-Ru alloys.
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: From Papua New Guinea. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the IRIDium and ARSENic in the composition.
Help on Name Pronunciation: Name Pronunciation: Iridarsenite + Pronunciation Say IRIDARSENITE
Help on Synonym: Synonym: ICSD 42573
  PDF 14-411
 

Search for Iridarsenite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

  

Iridarsenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9983:1:1.0198
Help on Cell Dimensions: Cell Dimensions: a = 6.05, b = 6.06, c = 6.18, Z = 4; beta = 113.283° V = 208.13 Den(Calc)= 10.19
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.9(1), 2.84(0.7), 2.069(0.6),
Click Here for Large Iridarsenite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above


Kjekshus A , Acta Chemica Scandinavica , 25 (1971) p.411-422, On the properties of binary compounds, with the CoSb2 type crystal structure, Locality: synthetic

 

Physical Properties of Iridarsenite

Help on Color: Color: Gray.
Help on Density: Density: 10.9
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 5-5.5 - Apatite-Knife Blade
Help on Luster: Luster: Metallic
 

Optical Properties of Iridarsenite

Help on RL Anisotrophism: RL Anisotrophism: Weak but distinct, from medium gray to pale orange brown.
Help on RL Color: RL Color: Medium gray with brownish tint.
Help on RL Pleochroism: RL Pleochroism: Weak to none.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Iridarsenite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   47.20   46.90 
   
 546 nm   45.40   46.10 
 589 nm   44.90   46.60 
 650 nm   41.40   44.00 
Calculated Relative Intensity Colors of Iridarsenite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210%
R1                  
R2                  
 

Calculated Properties of Iridarsenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=8.60 gm/cc
note: Specific Gravity of Iridarsenite =10.2 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEIridarsenite = 715.42 barns/electron
U=PEIridarsenite x rElectron Density=6,153.54 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Iridarsenite is Not Radioactive
 

Iridarsenite Classification

Help on  Dana Class: Dana Class: 02.12.04.05 (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.04)Arsenopyrite Group (Monoclinic: P21/c (Pseudo-orthorhombic))
 
02.12.04.01 Arsenopyrite FeAsS P 21/c 2/m
 
02.12.04.02 Gudmundite FeSbS P 21/n 2/m
 
02.12.04.03 Osarsite (Os,Ru)AsS P 21/c 2/m
 
02.12.04.04 Ruarsite RuAsS P 21/c 2/m
 
02.12.04.05 Iridarsenite (Ir,Ru)As2 P 21/c 2/m
 
02.12.04.06 Clinosafflorite (Co,Fe,Ni)As2 P 21/n 2/m
Help on  Strunz Class: Strunz Class: 02.AC.45b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.A - Simple Sulfides, Selenides, etc
  02.AC -Alloys of metalloids with PGE
 
02.AC.45b Iridarsenite (Ir,Ru)As2 P 21/c 2/m
 

Other Iridarsenite 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 Iridarsenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Iridarsenite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Iridarsenite :

A Bijoux Google Search for Iridarsenite
Adam's Minerals Google Search for Iridarsenite
Cape Minerals Google Search for Iridarsenite
Dakota Matrix Minerals Google Search for Iridarsenite
Excalibur Mineral Corp. Google Search for Iridarsenite
Exceptional Minerals Google Search for Iridarsenite
John Betts Fine Minerals Search for Iridarsenite
McDougall Minerals Google Search for Iridarsenite
Mineral News Website Link
Rock and Mineral Shows Google Search for Iridarsenite
Weinrich Minerals, Inc. Google Search for Iridarsenite

Ask about Iridarsenite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Iridarsenite

(Ir,Ru)As2
Dana No: 02.12.04.05 Strunz No: 02.AC.45b
Locality:

 

Notes: