Mineralogy Database

Palladseite Mineral Data

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General Palladseite Information

Help on Chemical  Formula: Chemical Formula: Pd17Se15
Help on Composition: Composition: Molecular Weight = 2,993.54 gm
   Palladium  60.43 %  Pd
   Selenium   39.57 %  Se
             100.00 % 
Help on Empirical Formula: Empirical Formula: Pd17Se15
Help on Environment: Environment: Residual concentrates from gold washings.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Itabira, Minas Gerais, Brazil Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition, PALLADium and SElenium.
Help on Name Pronunciation: Name Pronunciation: Palladseite + Pronunciation Say PALLADSEITE
Help on Synonym: Synonym: ICSD 23907
  PDF 29-1437

Palladseite Image

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Comments: Irregular metallic palladseite grain.
Location: Itabira, Minas Gerais, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Palladseite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.606, Z = 2; V = 1,193.04 Den(Calc)= 8.33
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: P m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.875(1), 3.198(1), 2.041(0.81),

Physical Properties of Palladseite

Help on Color: Color: White.
Help on Density: Density: 8.3
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 4.5-5 - Near Apatite
Help on Luster: Luster: Metallic

Optical Properties of Palladseite

Help on RL Color: RL Color: White in air, light gray in oil.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Palladseite in Air
λ R  ∑ R(λ) 
 400 nm   42.40   
 420 nm   42.80 
 440 nm   43.30 
 460 nm   43.80 
 480 nm   44.30 
 500 nm   44.80 
 520 nm   45.40 
 540 nm   45.70 
 560 nm   45.80 
 580 nm   45.70 
 600 nm   45.60 
 620 nm   45.60 
 640 nm   45.60 
 660 nm   45.70 
 680 nm   45.80 
 700 nm   46.20 
Calculated Relative Intensity Colors of Palladseite in Air
   0%   30%   60%   90% 100% 120% 150% 180% 210%

Calculated Properties of Palladseite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.19 gm/cc
note: Specific Gravity of Palladseite =8.33 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEPalladseite = 178.67 barns/electron
U=PEPalladseite x rElectron Density=1,284.71 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Palladseite is Not Radioactive

Palladseite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.16)with miscellaneous formulae
  (02.16.19)Palladseite Group Palladseite Pd17Se15 P m3m 4/m 3 2/m Miassite! Rh17S15 P m3m 4/m 3 2/m Prassoite! Rh17S15(?) P m3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 02.BC.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)
  02.BC -With Rh, Pd, Pt, etc.
02.BC.05 Miassite! Rh17S15 P m3m 4/m 3 2/m
02.BC.05 Palladseite Pd17Se15 P m3m 4/m 3 2/m

Other Palladseite 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 Palladseite :
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

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Dana No: Strunz No: 02.BC.05





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