Platarsite Mineral Data

Platarsite Mineral Data
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General Platarsite Information

Help on Chemical Formula: Chemical Formula: (Pt,Rh,Ru)AsS
Help on Composition: Composition: Molecular Weight = 265.01 gm
   Arsenic    28.27 %  As
   Ruthenium   3.81 %  Ru
   Platinum   44.17 %  Pt
   Rhodium    11.65 %  Rh
   Sulfur     12.10 %  S
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Pt0.6Rh0.3Ru0.1AsS
Help on Environment: Environment: In replacement pegmatite deposits.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Onverwacht No. 330 mine, Lydenberg district, Transvaal, South Africa. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition, PLATinum and ARSenic.
Help on Name Pronunciation: Name Pronunciation: Platarsite + Pronunciation Say PLATARSITE
Help on Synonym: Synonym: ICSD 38427
  PDF 42-566
 

Platarsite Image

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

Platarsite

Comments: Coexisting platarsite (2) and sperrylite (1) included in a Pt-Fe alloy matrix. (CanMin, v15:385).
Location: Onverwacht mine, Transvaal, South Africa. Scale: See Image.
© Canadian Mineralogist

Platarsite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 5.79, Z = 4; V = 194.10 Den(Calc)= 9.07
Help on Crystal System: Crystal System: Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P a3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.746(1), 2.896(0.9), 3.345(0.8),
Click Here for Large Platarsite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
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B - Bonds On/Off
 Help on Above


Szymanski J T , The Canadian Mineralogist , 17 (1979) p.117-123, The crystal structure of platarsite, Pt(As,S)2, and a comparison with, sperrylite, PtAs2

 

Physical Properties of Platarsite

Help on Color: Color: Gray.
Help on Density: Density: 8
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Help on Hardness: Hardness: 7.5 - Garnet
Help on Luster: Luster: Metallic
 

Optical Properties of Platarsite

Help on RL Color: RL Color: Gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Platarsite in Air
λ R  ∑ R(λ) 
 420 nm   47.70   
 440 nm   47.40 
 460 nm   47.30 
 480 nm   47.30 
 500 nm   47.10 
 520 nm   47.50 
 540 nm   48.00 
 560 nm   48.20 
 580 nm   48.70 
 600 nm   49.00 
 620 nm   48.90 
 640 nm   48.90 
 660 nm   49.50 
 680 nm   49.80 
 700 nm   49.60 
Calculated Relative Intensity Colors of Platarsite in Air
Relative
Intensity		    0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190%
R                      
 

Calculated Properties of Platarsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.78 gm/cc
note: Specific Gravity of Platarsite =9.07 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEPlatarsite = 723.30 barns/electron
U=PEPlatarsite x rElectron Density=5,629.17 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Platarsite is Not Radioactive
 

Platarsite Classification
Help on Dana Class: Dana Class: 02.12.03.06 (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.03)Cobaltite Group (Cubic or pseudocubic crystals)
 
02.12.03.01 Cobaltite CoAsS P ca21 mm2
 
02.12.03.02 Gersdorffite NiAsS P 213 2 3
 
02.12.03.03 Ullmannite NiSbS P 213 2 3
 
02.12.03.04 Willyamite (Co,Ni)SbS P 213 2 3
 
02.12.03.05 Tolovkite IrSbS P 213 2 3
 
02.12.03.06 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3
 
02.12.03.07 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3
 
02.12.03.08 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3
 
02.12.03.09 Jolliffeite (Ni,Co)AsSe P a3 2/m 3
 
02.12.03.10 Padmaite PdBiSe P 213 2 3
 
02.12.03.11 Michenerite (Pd,Pt)BiTe P 213 2 3
 
02.12.03.12 Maslovite PtBiTe P 213 2 3
 
02.12.03.13 Testibiopalladite PdTe(Sb,Te) P 213 2 3
 
02.12.03.14 Changchengite! IrBiS P 213 2 3
 
02.12.03.15 Milotaite! PdSbSe P 21/3 2 3
 
02.12.03.16 Kalungaite! PdAsSe Pa3 2/m 3
Help on Strunz Class: Strunz Class: 02.EB.25 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.E - Metal Sulfides, M:S £ 1:2
  02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.
 
02.EB.25 Cobaltite CoAsS P ca21 mm2
 
02.EB.25 Changchengite! IrBiS P 213 2 3
 
02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3
 
02.EB.25 Gersdorffite NiAsS P 213 2 3
 
02.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3
 
02.EB.25 Jolliffeite (Ni,Co)AsSe P a3 2/m 3
 
02.EB.25 Krutovite NiAs2 P a3 2/m 3
 
02.EB.25 Michenerite (Pd,Pt)BiTe P 213 2 3
 
02.EB.25 Maslovite PtBiTe P 213 2 3
 
02.EB.25 Mayingite IrBiTe P a3 2/m 3
 
02.EB.25 Padmaite PdBiSe P 213 2 3
 
02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3
 
02.EB.25 Ullmannite NiSbS P 213 2 3
 
02.EB.25 Tolovkite IrSbS P 213 2 3
 
02.EB.25 Testibiopalladite PdTe(Sb,Te) P 213 2 3
 
02.EB.25 Willyamite (Co,Ni)SbS P 213 2 3
 
02.EB.25 Kalungaite! PdAsSe Pa3 2/m 3
 
02.EB.25 Milotaite! PdSbSe P 21/3 2 3
 

Other Platarsite 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 Platarsite :
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
15 - WWW-MINCRYST

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

Platarsite

(Pt,Rh,Ru)AsS
Dana No: 02.12.03.06 Strunz No: 02.EB.25
Locality:

 

Notes: