Mineralogy Database

Prassoite Mineral Data

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General Prassoite Information

Help on Chemical  Formula: Chemical Formula: Rh17S15 (?)
Help on Composition: Composition: Molecular Weight = 2,230.38 gm
   Rhodium  78.43 %  Rh
   Sulfur   21.57 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: Rh17S15
Help on Environment: Environment: Prassoite was approved as a valid species but never published. Miassite appearantly has priority as the valid name by publication.
Help on IMA Status: IMA Status: Withdrawn IMA 2003 in favor of miassite, Approved IMA 1971 ? (Dana # Added)
Help on Locality: Locality: Tiebaghi massif, New Caledonia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: No derivation of name stated.
Help on Synonym: Synonym: ICSD 23930
  IMA1970-041
  PDF 73-1433
 

Prassoite Crystallography

Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: P m3m
 

Physical Properties of Prassoite

Help on Color: Color: White.
Help on Density: Density: 7.6 - 7.61, Average = 7.6
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luster: Luster: Metallic
 

Calculated Properties of Prassoite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.85 gm/cc
note: Specific Gravity of Prassoite =7.61 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0016174012
Boson Index = 0.9983825988
Help on Photoelectric: Photoelectric: PEPrassoite = 171.51 barns/electron
U=PEPrassoite x rElectron Density=1,175.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Prassoite is Not Radioactive
 

Prassoite Classification

Help on  Dana Class: Dana Class: 02.16.19.02a (02)Sulfides - Including Selenides and Tellurides
  (02.16)with miscellaneous formulae
  (02.16.19)Palladseite Group
 
02.16.19.01 Palladseite Pd17Se15 P m3m 4/m 3 2/m
 
02.16.19.02 Miassite! Rh17S15 P m3m 4/m 3 2/m
 
02.16.19.02a Prassoite! Rh17S15(?) P m3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 02.XX.00 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.X - Unclassified Strunz SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarse
  02.XX -Sulfide
 
02.XX.00 Isochalcopyrite? Cu8Fe9S16 Unk Cubic
 
02.XX.00 Bayankhanite? Cu6HgS4 Unk Hex
 
02.XX.00 Bravoite? (Fe,Ni,Co)S2 P a3 2/m 3
 
02.XX.00 Dzhezkazganite* (Pb,Cu,Rh)S2(?) P a3? 2/m 3
 
02.XX.00 Dilithium* Li2Te P 222 2 2 2
 
02.XX.00 Horobetsuite* (Bi,Sb)2S3 Pbnm 2/m 2/m 2/m
 
02.XX.00 Horsfordite? Cu5Sb Unk Cubic
 
02.XX.00 Kurilite? (Ag,Au)2(Te,Se,S) P m3n,P 43n Cubic
 
02.XX.00 Imgreite? NiTe P 63/mmc 6/m 2/m 2/m
 
02.XX.00 Matraite? ZnS R 3m 3m
 
02.XX.00 Iridisite* (Ir,Cu,Rh,Ni,Pt)S2 Unk Cubic
 
02.XX.00 Kitaibelite? Ag10PbBi30S51 Mono ? Mono
 
02.XX.00 Jeromite? As(S,Se)2 None
 
02.XX.00 Parajamesonite? Pb4FeSb6S14 Unk Ortho
 
02.XX.00 Volfsonite* Cu10CuFeFe2Sn3S16 P 42m-,P 4212 Tetra
 
02.XX.00 Prassoite Rh17S15(?) P m3m 4/m 3 2/m
 
02.XX.00 Sakharovaite? (Pb,Fe)(Bi,Sb)2S4 Mono
 
02.XX.00 Samaniite Cu2Fe5Ni2S8 P 41/mmm 4mm
 
02.XX.00 Tazieffite! Pb20Cd2(As,Bi)22S50Cl10 C 2/c 2/m
 
02.XX.00 Horomanite Fe6Ni3S8 P 4/mmm 4mm
 

Other Prassoite Information

Help on References: References: PHYS. PROP.(Am.Min.,Vol.74,p1220,1989)
Help on See Also: See Also: Links to other databases for Prassoite :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Prassoite

Rh17S15 (?)
Dana No: 02.16.19.02a Strunz No: 02.XX.00
Locality:

 

Notes:

 

 
   
 


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