Rutheniridosmine
A valid IMA mineral species
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About Rutheniridosmine
Formula:
(Ir,Os,Ru)
Colour:
Silver-white
Lustre:
Metallic
Hardness:
6 - 7
Crystal System:
Hexagonal
Name:
The name reflects its composition , being comprised of RUTHENium, IRIDium, and OSMIum.
Rutheniridosmine was defined as a new species by the IMA-CNMMN-approved nomenclature of the natural alloys of Os-Ir-Ru (Harris & Cabri 1973). The natural occurrence of the mineral was confirmed in the same paper by Harris & Cabri (1973) from many Canadian localities, from Japan and from an unknown locality in New Guinea. The compositional field for rutheniridosmine was restricted by the revised nomenclature (Harris & Cabri 1991) to alloys in which Ir is the dominant element.
Rutheniridosmine was defined as a new species by the IMA-CNMMN-approved nomenclature of the natural alloys of Os-Ir-Ru (Harris & Cabri 1973). The natural occurrence of the mineral was confirmed in the same paper by Harris & Cabri (1973) from many Canadian localities, from Japan and from an unknown locality in New Guinea. The compositional field for rutheniridosmine was restricted by the revised nomenclature (Harris & Cabri 1991) to alloys in which Ir is the dominant element.
Co-Type Localities:
ⓘ Spruce Creek, Atlin Mining Division, British Columbia, Canada
ⓘ Ruby Creek, Surprise Lake, Atlin Mining Division, British Columbia, Canada
ⓘ Bullion Pit, Likely, Cariboo Mining Division, British Columbia, Canada
ⓘ Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Ruby Creek, Surprise Lake, Atlin Mining Division, British Columbia, Canada
ⓘ Bullion Pit, Likely, Cariboo Mining Division, British Columbia, Canada
ⓘ Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
Unique Identifiers
Mindat ID:
3482
Long-form identifier:
mindat:1:1:3482:7
IMA Classification of Rutheniridosmine
Classification of Rutheniridosmine
1.AF.05
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
F : Platinum group elements
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
F : Platinum group elements
Dana 7th ed.:
1.2.1.5
1.2.2.3
1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Rir | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Rutheniridosmine
Metallic
Transparency:
Opaque
Colour:
Silver-white
Hardness:
6 - 7 on Mohs scale
Hardness:
VHN100=960 - 1004 kg/mm2 - Vickers
Optical Data of Rutheniridosmine
Anisotropism:
Weak to moderate; may show wavy extinction, colors tinged with orange.
Colour in reflected light:
white with a bluish gray tinge.
Pleochroism:
Weak
Comments:
Weak to absent
Chemistry of Rutheniridosmine
Mindat Formula:
(Ir,Os,Ru)
Element Weights:
| Element | % weight |
|---|---|
| Ir | 100.000 % |
Calculated from ideal end-member formula.
Elements listed:
Common Impurities:
Pt,Pd,Rh,Fe,Ni
Crystallography of Rutheniridosmine
Crystal System:
Hexagonal
Class (H-M):
6/mmm(6/m2/m2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Setting:
P63/mmc
Cell Parameters:
a = 2.726(2) Å, c = 4.326(3) Å
Ratio:
a:c = 1 : 1.587
Unit Cell V:
27.84 ų (Calculated from Unit Cell)
Z:
2
Twinning:
Very fine lamellar twinning, but nearly isotropic
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.071 Å | (100) |
| 2.363 Å | (80) |
| 1.364 Å | (60) |
| 1.153 Å | (50) |
| 0.8737 Å | (50B) |
| 1.139 Å | (40) |
| 1.594 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 26 : Hadean detrital minerals | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 36 : Carbonatites, kimberlites, and related igneous rocks | |
| 37 : Layered igneous intrusions and related PGE minerals |
Type Occurrence of Rutheniridosmine
Co-Type Localities:
ⓘ Spruce Creek, Atlin Mining Division, British Columbia, Canada
ⓘ Ruby Creek, Surprise Lake, Atlin Mining Division, British Columbia, Canada
ⓘ Bullion Pit, Likely, Cariboo Mining Division, British Columbia, Canada
ⓘ Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Ruby Creek, Surprise Lake, Atlin Mining Division, British Columbia, Canada
ⓘ Bullion Pit, Likely, Cariboo Mining Division, British Columbia, Canada
ⓘ Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
Other Language Names for Rutheniridosmine
Common Associates
Associations Based on Photo Data:
| 7 photos of Rutheniridosmine associated with Isoferroplatinum | Pt3Fe |
| 7 photos of Rutheniridosmine associated with Native Iridium | (Ir,Os,Ru) |
| 7 photos of Rutheniridosmine associated with Laurite | RuS2 |
| 5 photos of Rutheniridosmine associated with Native Osmium | (Os,Ir,Ru) |
| 4 photos of Rutheniridosmine associated with Iridarsenite | (Ir,Ru)As2 |
| 3 photos of Rutheniridosmine associated with Cuproiridsite | (Cu,Fe)Ir2S4 |
| 2 photos of Rutheniridosmine associated with 'Osmiridium' | (Ir,Os,Ru) |
| 2 photos of Rutheniridosmine associated with 'Iridosmine' | (Os,Ir) |
| 1 photo of Rutheniridosmine associated with Irarsite | (Ir,Ru,Rh,Pt)AsS |
| 1 photo of Rutheniridosmine associated with Magnetite | Fe2+Fe3+2O4 |
Related Minerals - Strunz-mindat Grouping
| 1.AF.05 | Native Ruthenium | (Ru,Ir) |
| 1.AF.05 | Native Osmium | (Os,Ir,Ru) |
| 1.AF.10 | Native Rhodium | (Rh,Pt) |
| 1.AF.10 | Native Platinum | Pt |
| 1.AF.10 | Native Palladium | (Pd,Pt) |
| 1.AF.10 | Native Iridium | (Ir,Os,Ru) |
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 Rutheniridosmine
mindat.org URL:
https://www.mindat.org/min-3482.html
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External Links:
Mineral Dealers:
References for Rutheniridosmine
Reference List:
Harris, D. C., Cabri, L. J. (1973) The nomenclature of the natural alloys of osmium, iridium and ruthenium based on new compositional data of alloys from world-wide occurrences. The Canadian Mineralogist, 12 (2) 104-112
Harris, D. C., Cabri, L. J. (1991) Nomenclature of platinum-group-element alloys: review and revision. The Canadian Mineralogist, 29 (2) 231-237 [Redefinition; all localities except those included are suspect - multiple TLs]
Localities for Rutheniridosmine
Showing 71 localities.
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.
Australia | |
| Bottrill & Baker +1 other reference |
| Bottrill et al. (2008) |
| Bottrill et al. (2008) |
Bulgaria | |
| Цинцов (1998) |
| Bul. Acad. Sci. (1998) |
Canada (TL) | |
| Harris et al. (1973) |
| Harris et al. (1973) +1 other reference |
| Harris et al. (1973) |
| Harris et al. (1973) |
| Barkov et al. (2005) | |
| Nixon et al. (1990) | |
| Ohnenstetter et al. (1986) |
Chile | |
| Galdames et al. (2010) |
China | |
| Anthony et al. (1990) |
| Jianxun Bai (1987) |
Colombia | |
| Robert C. Smith |
| Min Mag (1997) |
Czech Republic | |
| Malec J |
Ethiopia | |
| Pavel M. Kartashov (n.d.) |
Finland | |
| Törnroos et al. (1998) +1 other reference | |
France | |
| Lorand et al. (2018) |
| Ducluzaux (2022) |
| Ducluzaux (2021) |
| Y. Moëlo : "Compte-rendu de la ... +1 other reference |
Greece | |
| Kapsiotis et al. (2011) |
| Auge (1985) +1 other reference |
| Garuti et al. (1997) | |
| Garuti et al. (1997) | |
Japan (TL) | |
| Excalibur Mineral Co. specimens and ... |
| NISHIO–HAMANE et al. (2022) |
| NISHIO–HAMANE et al. (2022) | |
| NISHIO–HAMANE et al. (2022) | |
| Dr Daisuke Nishio-Hamane +1 other reference |
| NISHIO–HAMANE et al. (2022) | |
| NISHIO–HAMANE et al. (2022) |
| NISHIO–HAMANE et al. (2022) |
| NISHIO–HAMANE et al. (2022) |
| Hori Mineralogy analyses and Gunnar ... |
Kazakhstan | |
| doi.org (n.d.) +2 other references |
Mongolia | |
| www.dmitrenkogg.narod.ru (n.d.) +1 other reference |
New Zealand | |
| Christie et al. (1994) |
Papua New Guinea | |
| Cabri et al. (2022) |
| Bull. Soc. Franç. Minéralo. ... |
Russia | |
| Pavel M. Kartashov analytical data 2018 |
| R.O. Meyer collection +1 other reference |
| Mineralogical Society of America - ... | |
| Rudashevskiy et al. (1985) +1 other reference |
| Mochalov et al. (2022) |
| |
| Tolstykh et al. (2009) |
| Nesterenko +4 other references |
| ... | |
| Barkov et al. (2023) |
| Barkov et al. (2021) +1 other reference | |
| Malitch et al. (2022) |
| Malitch et al. (2022) | |
| Cherkasova et al. (2014, August) |
| Shcheka et al. (2004) |
| Gregor Borg et al (2001) |
| Johan (2006) |
| Oidup et al. (2012) |
USA | |
| Min Mag (1997) |
| Sjoberg et al. (1980) +2 other references |
| Sjoberg et al. (1980) +2 other references |
| Sjoberg et al. (1980) +2 other references |
| Sjoberg et al. (1980) +2 other references |
| Alfredo Petrov specimen (ex-Kristalle) |
| Sjoberg et al. (1980) +2 other references |
| Sjoberg et al. (1980) +2 other references |
The Moon | |
| A.V. Mokhov analytical data |
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Unspecified gold placer, Uchalinsky District, Bashkortostan, Russia