UM1997-34-O:FeIrOsRu
Invalid as an unnamed mineral
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Formula:
(Ru,Os,Ir,Fe)2O2-3 (?)
Questionable due to low analytical totals (as reported/suggested by Smith & Nickel).
As inclusions, 5–35 microns in diameter, usually in a rim a of chromite crystal. Suggested to derive from desufurization of laurite-erlichmanite during a hydrothermal event.
Electron microprobe analysis results (wt.%; most Os- and Ir-rich, respectively):
OsO2 84.20, 15.64
IrO2 -, 24.49
RhO2 -, 0.16
PdO2 -, 0.33
Fe2O3 8.97, 26.61
NiO 4.20, 1.85
CuO 1.94, 0.09 (the latter one reported as "Cu")
total 99.31, 99.54
(Ru+Os+ Ir)/(Fe+Ni+Cu) = 1 to 5
As inclusions, 5–35 microns in diameter, usually in a rim a of chromite crystal. Suggested to derive from desufurization of laurite-erlichmanite during a hydrothermal event.
Electron microprobe analysis results (wt.%; most Os- and Ir-rich, respectively):
OsO2 84.20, 15.64
IrO2 -, 24.49
RhO2 -, 0.16
PdO2 -, 0.33
Fe2O3 8.97, 26.61
NiO 4.20, 1.85
CuO 1.94, 0.09 (the latter one reported as "Cu")
total 99.31, 99.54
(Ru+Os+ Ir)/(Fe+Ni+Cu) = 1 to 5
Unique Identifiers
Mindat ID:
54101
Long-form identifier:
mindat:1:1:54101:7
Similar Names
| UM1990-18-E:FeIrOsRu | (Ru,Os,Ir)2Fe3 | |
| UM1990-19-E:FeIrOsRu | (Ru,Os,Ir)Fe3 |
IMA Classification of UM1997-34-O:FeIrOsRu
IMA status notes:
Unnamed (probably invalid)
Physical Properties of UM1997-34-O:FeIrOsRu
Hardness:
VHN100=339 - 446 - Vickers
Optical Data of UM1997-34-O:FeIrOsRu
Anisotropism:
strong, resembling that of graphite
Bireflectance:
strong
Reflectivity:
| Wavelength | R1 (%) |
|---|---|
| 548nm | 25-27% |
| 548nm | 28-38% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 28-38%.
Colour in reflected light:
yellowish gray
Chemistry of UM1997-34-O:FeIrOsRu
Mindat Formula:
(Ru,Os,Ir,Fe)2O2-3 (?)
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for UM1997-34-O:FeIrOsRu
mindat.org URL:
https://www.mindat.org/min-54101.html
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References for UM1997-34-O:FeIrOsRu
Reference List:
Garuti, G., Zaccarini, F., Cabella, R., Fershtater, G. (1997) Occurrence of unknown Ru-Os-Ir-Fe oxides in the chromitites of the Nurali ultramafic complex, southern Urals, Russia. Can. Mineral.: 35: 1431–1439(Abs. in: Jambor, J.L., Roberts, A.C. (1999): New mineral names. American Mineralogist: 84: 197)
Localities for UM1997-34-O:FeIrOsRu
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Russia | |
| Garuti et al. (1997) +1 other reference |
