Arsenopalladinite Mineral Data

Arsenopalladinite Mineral Data
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General Arsenopalladinite Information

Help on Chemical Formula: Chemical Formula: Pd8(As,Sb)3
Help on Composition: Composition: Molecular Weight = 1,099.54 gm
   Antimony    5.54 %  Sb
   Arsenic    17.03 %  As
   Palladium  77.43 %  Pd
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Pd8As2.5Sb0.5
Help on Environment: Environment: Alluvial placers and ultra-basic intrusions.
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: Itabira, Minas Gerias, Brazil. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition.
Help on Name Pronunciation: Name Pronunciation: Arsenopalladinite + Pronunciation Say ARSENOPALLADINITE
 

Arsenopalladinite Image

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Arsenopalladinite   Isomertieite   Gold   Bornite

Comments: Light grayish grain of intimately intergrown isomertieite and arsenopalladinite (in the center of the picture), with pale yellow gold and brownish to violet bornite. Polished section (from microprobe analysis) in reflected light.
Location: Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia. Scale: Picture size 0.1 mm.
© Thomas Witzke / Abraxas-Verlag
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Arsenopalladinite

Comments: Arsenopalladinite micro crystal.
Location: Itabira, Minas Gerais, Brazil. Scale: Not Given.
© Jeff Weissman / Photographic Guide to Mineral Species

Arsenopalladinite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5326:1:0.5268
Help on Cell Dimensions: Cell Dimensions: a = 7.43, b = 13.95, c = 7.35, Z = 4; alpha = 92.88°, beta = 119.5°, gamma = 87.85° V = 661.75 Den(Calc)= 11.04
Help on Crystal System: Crystal System: Triclinic - PedialH-M Symbol (1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.13(1), 2.34(0.6), 1.41(0.4),
 

Physical Properties of Arsenopalladinite

Help on Color: Color: Silver white.
Help on Density: Density: 10.4
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Habit: Habit: Nuggets - Irregular lumps produced by stream transport of malleable metals.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Metallic
 

Optical Properties of Arsenopalladinite

Help on RL Anisotrophism: RL Anisotrophism: Strong, red and golden brown to blue-gray in air, khaki-brown to blue gray in oil.
Help on RL Color: RL Color: White with yellowish creamy tint.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Arsenopalladinite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   43.90   44.50 
   
 420 nm   44.70   45.80 
 440 nm   45.70   46.50 
 460 nm   46.80   47.80 
 480 nm   48.10   49.40 
 500 nm   49.40   50.80 
 520 nm   50.80   52.40 
 540 nm   52.10   53.90 
 560 nm   53.20   55.10 
 580 nm   54.40   56.40 
 600 nm   55.40   57.30 
 620 nm   56.40   58.10 
 640 nm   57.00   58.80 
 660 nm   57.70   59.20 
 680 nm   58.20   59.80 
 700 nm   58.80   60.00 
Calculated Relative Intensity Colors of Arsenopalladinite in Air
Relative
Intensity		    0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190%
R1                      
R2                      
 

Calculated Properties of Arsenopalladinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=9.55 gm/cc
note: Specific Gravity of Arsenopalladinite =11.0 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.17
Boson Index = 0.83
Help on Photoelectric: Photoelectric: PEArsenopalladinite = 218.60 barns/electron
U=PEArsenopalladinite x rElectron Density=2,087.65 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Arsenopalladinite is Not Radioactive
 

Arsenopalladinite Classification
Help on Dana Class: Dana Class: 02.16.05.01 (02)Sulfides - Including Selenides and Tellurides
  (02.16)with miscellaneous formulae
  (02.16.05)Dana Group
 
02.16.05.01 Arsenopalladinite Pd8(As,Sb)3 P1 1
Help on Strunz Class: Strunz Class: 02.AC.10c 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.10c Arsenopalladinite Pd8(As,Sb)3 P1 1
 

Other Arsenopalladinite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Arsenopalladinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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Arsenopalladinite

Pd8(As,Sb)3
Dana No: 02.16.05.01 Strunz No: 02.AC.10c
Locality:

 

Notes: