General Prassoite Information Chemical Formula: |
Rh17S15 (?) |
Composition: |
Molecular Weight = 2,230.38 gm |
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Rhodium 78.43 % Rh |
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Sulfur 21.57 % S |
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100.00 % |
Empirical Formula: |
Rh17S15 |
Environment: |
Prassoite was approved as a valid species but never published. Miassite appearantly has priority as the valid name by publication. |
IMA Status: |
Withdrawn IMA 2003 in favor of miassite, Approved IMA 1971 ? (Dana # Added) |
Locality: |
Tiebaghi massif, New Caledonia. Link to MinDat.org Location Data. |
Name Origin: |
No derivation of name stated. |
Synonym: |
ICSD 23930 |
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IMA1970-041 |
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PDF 73-1433 |
| | Search for Prassoite Images
Images:
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| | Prassoite Crystallography Crystal System: |
Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: P m3m |
| Physical Properties of Prassoite Color: |
White. |
Density: |
7.6 - 7.61, Average = 7.6 |
Diaphaneity: |
Opaque |
Hardness: |
5-6 - Between Apatite and Orthoclase |
Luster: |
Metallic |
| Calculated Properties of Prassoite Electron Density: |
Bulk Density (Electron Density)=6.85 gm/cc |
note: Specific Gravity of Prassoite =7.61 gm/cc. Fermion Index: |
Fermion Index = 0.0016174012 |
Boson Index = 0.9983825988 Photoelectric: |
PEPrassoite = 171.51 barns/electron |
U=PEPrassoite x rElectron Density=1,175.43 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Prassoite is Not Radioactive | Prassoite Classification Dana Class: |
02.16.19.02a (02)Sulfides - Including Selenides and Tellurides |
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(02.16)with miscellaneous formulae |
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(02.16.19)Palladseite Group |
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Strunz Class: |
02.XX.00 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.X - Unclassified Strunz SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarse |
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02.XX -Sulfide |
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| Other Prassoite Information References: |
PHYS. PROP.(Am.Min.,Vol.74,p1220,1989) |
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 Search for Prassoite using: Visit our Advertisers for Prassoite : A Bijoux Google Search for PrassoiteAdam's Minerals Google Search for Prassoite Cape Minerals Google Search for Prassoite Dakota Matrix Minerals Google Search for Prassoite Excalibur Mineral Corp. Google Search for Prassoite Exceptional Minerals Google Search for Prassoite John Betts Fine Minerals Search for Prassoite McDougall Minerals Google Search for Prassoite Mineral News Website Link Rock and Mineral Shows Google Search for Prassoite Weinrich Minerals, Inc. Google Search for Prassoite Ask about Prassoite here : Print or Cut-and-Paste your Prassoite Specimen Label here :
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