Ruthenarsenite
A valid IMA mineral species
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Formula:
(Ru,Ni)As
Colour:
Light brown
Lustre:
Metallic
Hardness:
6 - 6½
Specific Gravity:
10.0 (Calculated)
Crystal System:
Orthorhombic
Name:
The name reflects its composition: a ruthenium arsenide.
Type Locality:
Note that the name ends with -ite, altough the mineral is an arsenide.
Unique Identifiers
Mindat ID:
3481
Long-form identifier:
mindat:1:1:3481:0
GUID
(UUID V4):
(UUID V4):
8479b9b9-090f-498d-ae4f-84b4ab64862a
IMA Classification of Ruthenarsenite
Approved
Classification of Ruthenarsenite
2.CC.15
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.
2.8.17.1
2 : SULFIDES
8 : AmXp, with m:p = 1:1
2 : SULFIDES
8 : AmXp, with m:p = 1:1
3.12.3
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Ras | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Ruthenarsenite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Ruthenarsenite
Metallic
Transparency:
Opaque
Colour:
Light brown
Hardness:
6 - 6½ on Mohs scale
Hardness:
VHN100=743 - 933 kg/mm2 - Vickers
Density:
10.0 g/cm3 (Calculated)
Optical Data of Ruthenarsenite
Anisotropism:
Strong, orange-brown to pale steel-gray.
Colour in reflected light:
pale orange-brown to brownish gray
Pleochroism:
Visible
Chemistry of Ruthenarsenite
Mindat Formula:
(Ru,Ni)As
Elements listed:
Common Impurities:
Ir,Os,Pt,Rh,Pd,Sb
Crystallography of Ruthenarsenite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 5.628 Å, b = 3.239 Å, c = 6.184 Å
Ratio:
a:b:c = 1.738 : 1 : 1.909
Unit Cell V:
112.73 Ă
Âł (Calculated from Unit Cell)
Z:
4
Comment:
synthetic
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.061 Ă | (100) |
| 2.696 Ă | (70) |
| 2.124 Ă | (50) |
| 1.780 Ă | (40) |
| 1.750 Ă | (40) |
| 1.343 Ă | (40) |
| 1.302 Ă | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 26 : Hadean detrital minerals | |
| High-đ alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 36 : Carbonatites, kimberlites, and related igneous rocks | |
| 37 : Layered igneous intrusions and related PGE minerals | |
| Stage 5: Initiation of plate tectonics | <3.5-2.5 |
| 38 : Ophiolites |
Type Occurrence of Ruthenarsenite
General Appearance of Type Material:
inclusions in OsâIrâRu alloys
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Canada.
Associated Minerals at Type Locality:
Reference:
Harris D C (1974) Ruthenarsenite and iridarsenite, two new minerals from the territory of Papua and New Guinea and associated irarsite, laurite and cubic iron-bearing platinum. The Canadian Mineralogist 12, 280-284
Other Language Names for Ruthenarsenite
German:Ruthenarsenit
Spanish:Ruthenarsenita
Common Associates
Associated Minerals Based on Photo Data:
| 1 photo of Ruthenarsenite associated with Tetraferroplatinum | PtFe |
| 1 photo of Ruthenarsenite associated with Fayalite-Forsterite Series | |
| 1 photo of Ruthenarsenite associated with Sperrylite | PtAs2 |
| 1 photo of Ruthenarsenite associated with Isoferroplatinum | Pt3Fe |
| 1 photo of Ruthenarsenite associated with Chromite | Fe2+Cr3+2O4 |
| 1 photo of Ruthenarsenite associated with Genkinite | Pt4Sb3 |
Related Minerals - Strunz-mindat Grouping
| 2.CC. | Tilkerodeite | Pd2HgSe3 |
| 2.CC. | UM2007-26-S:CuFeIrNiPtRh | (Ir,Cu,Ni,Pt,Rh,Fe)9S11 |
| 2.CC. | Crowningshieldite | (Ni0.9Fe0.10)S |
| 2.CC. | Eliopoulosite | V7S8 |
| 2.CC. | Kuvaevite | Ir5Ni10S16 |
| 2.CC. | Torryweiserite | Rh5Ni10S16 |
| 2.CC. | Tamuraite | Ir5Fe10S16 |
| 2.CC. | Ferrotorryweiserite | Rh5Fe10S16 |
| 2.CC.05 | AchĂĄvalite | FeSe |
| 2.CC.05 | Breithauptite | NiSb |
| 2.CC.05 | Freboldite | CoSe |
| 2.CC.05 | Kotulskite | Pd(Te,Bi)2-x (x â 0.4) |
| 2.CC.05 | Langisite | CoAs |
| 2.CC.05 | Nickeline | NiAs |
| 2.CC.05 | Sederholmite | beta-NiSe |
| 2.CC.05 | Sobolevskite | PdBi |
| 2.CC.05 | Stumpflite | PtSb |
| 2.CC.05 | Sudburyite | PdSb |
| 2.CC.05 | Jaipurite | CoS |
| 2.CC.05 | Zlatogorite | NiCuSb2 |
| 2.CC.10 | Pyrrhotite | Fe1-xS |
| 2.CC.10 | Smythite | (Fe,Ni)3+xS4 (x=0-0.3) |
| 2.CC.10 | Troilite | FeS |
| 2.CC.15 | Cherepanovite | RhAs |
| 2.CC.15 | Modderite | (Co,Fe)As |
| 2.CC.15 | Westerveldite | (Fe,Ni,Co)As |
| 2.CC.15 | Minakawaite | RhSb |
| 2.CC.20 | Millerite | NiS |
| 2.CC.20 | MĂ€kinenite | Îł-NiSe |
| 2.CC.20 | UM1990-38-S:CuFeIrNiPtRh | (Ni,Fe,Rh,Cu,Ir,Pt)S |
| 2.CC.25 | Mackinawite | FeS |
| 2.CC.30 | Hexatestibiopanickelite | (Pd,Ni)(Sb,Te) ? |
| 2.CC.30 | VavĆĂnite | Ni2SbTe2 |
| 2.CC.35a | Braggite | PdPt3S4 |
| 2.CC.35b | Cooperite | PtS |
| 2.CC.35a | Vysotskite | PdS |
| 2.CC.45 | Jacutingaite | Pt2HgSe3 |
| 2.CC.50 | Imgreite | NiTe (?) |
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 Ruthenarsenite
mindat.org URL:
https://www.mindat.org/min-3481.html
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References for Ruthenarsenite
Reference List:
Localities for Ruthenarsenite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
China | |
| Anthony et al. (1990) |
| Wenji Bai et al. (2007) |
Gabon | |
| Utsunomiya et al. (2006) |
Kazakhstan | |
| doi.org (n.d.) +1 other reference |
Papua New Guinea (TL) | |
| Harris (1974) |
Russia | |
| Shcheka G.G. et al. (2004) |
| Kiseleva et al. (2014) |
| Zaccarini et al. (2008) |
| Oidup et al. (2012) |
South Africa | |
| II et al. (3) +3 other references |
| Zaccarini et al. (2002) |
| Cairncross et al. (1995) | |
USA | |
| Anthony et al. (1990) |
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