Platarsite Mineral Data (original) (raw)

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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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

RelativeIntensity 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: