Mineralogy Database

Palarstanide Mineral Data

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General Palarstanide Information

Help on Chemical  Formula: Chemical Formula: Pd8(Sn,As)3
Help on Composition: Composition: Molecular Weight = 1,141.81 gm
   Tin        15.60 %  Sn
   Arsenic     9.84 %  As
   Palladium  74.56 %  Pd
             100.00 % 
Help on Empirical Formula: Empirical Formula: Pd8Sn1.5As1.5
Help on Environment: Environment: Intergrown wiith other minerals in massive ores of cubanite, chalcopyrite, and talnakhite.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Talnakh, Norilsk, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition (Palladium, Arsenic, Stannum(tin)).
Help on Name Pronunciation: Name Pronunciation: Palarstanide + Pronunciation Say PALARSTANIDE

Palarstanide Image

Click Here for Larger   Image in a New Browser Window Images:
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  Palarstanide   Atokite

Comments: Polished Section (PPL) showing light gray euhedral palarstanide (P) surrounded by white atokite (A) in light brownish cubanite (C).
Location: Talnakh, Ural, Russia. Scale: Picture Size 0.14 mm.
© Thomas Witzke

Palarstanide Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.1816
Help on Cell Dimensions: Cell Dimensions: a = 6.784, c = 14.8, Z = 4; V = 589.88 Den(Calc)= 12.86
Help on Crystal System: Crystal System: Hexagonal - Trapezohedral H-M Symbol (6 2 2) Space Group: P 6322
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.22(1), 1.986(0.4), 2.5(0.4),

Physical Properties of Palarstanide

Help on Cleavage: Cleavage: {0001} Perfect
Help on Color: Color: Steel gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Metallic

Optical Properties of Palarstanide

Help on RL Anisotrophism: RL Anisotrophism: Slight, dark gray to brownish gray.
Help on RL Color: RL Color: Grayish white with a slight rose tint.
Help on RL Pleochroism: RL Pleochroism: Distinct in oil.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Palarstanide in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 420 nm   46.00   49.20 
 440 nm   47.10   50.10 
 460 nm   48.10   51.10 
 480 nm   49.70   51.90 
 500 nm   50.80   52.80 
 520 nm   52.10   53.50 
 540 nm   53.20   54.50 
 560 nm   54.20   55.40 
 580 nm   55.10   56.40 
 600 nm   56.30   57.40 
 620 nm   57.20   58.30 
 640 nm   58.50   59.30 
 660 nm   59.30   60.10 
 680 nm   59.90   60.60 
 700 nm   60.00   61.00 
Calculated Relative Intensity Colors of Palarstanide in Air
   0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190%

Calculated Properties of Palarstanide

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=11.1 gm/cc
note: Specific Gravity of Palarstanide =12.9 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.19
Boson Index = 0.81
Help on Photoelectric: Photoelectric: PEPalarstanide = 237.97 barns/electron
U=PEPalarstanide x rElectron Density=2,639.97 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Palarstanide is Not Radioactive

Palarstanide Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.03)where Am Bn Xp, with (m+n):p=5:2
  (02.03.03)Dana Group Stibiopalladinite Pd5Sb2 P 63mc 6mm Palarstanide Pd8(Sn,As)3 P 6322 6 2 2
Help on  Strunz Class: Strunz Class: 02.AC.20b 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.20b Palarstanide Pd8(Sn,As)3 P 6322 6 2 2

Other Palarstanide Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Palarstanide :
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.AC.20b





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