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⇱ Ruarsite: Mineral information, data and localities.

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Ruarsite

A valid IMA mineral species
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About RuarsiteHide

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Formula:
(Ru,Os)AsS
Colour:
Dark lead-gray
Lustre:
Metallic
Hardness:
6 - 7
Specific Gravity:
7.08 (Calculated)
Crystal System:
Monoclinic
Name:
The name reflects its composition: ruthenium, arsenic and sulfur. The related minerals osarsite, irarsite, and platarsite are similarly named.
Arsenopyrite Group. A possible Te analogue is known as 'UM1981-01-AsTe:Ru'.


Unique IdentifiersHide

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Mindat ID:
3471
Long-form identifier:
mindat:1:1:3471:1

Similar NamesHide

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RorisiteA valid IMA mineral speciesCaFCl

IMA Classification of RuarsiteHide

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Approved
IMA Formula:
RuAsS
First published:
1979

Classification of RuarsiteHide

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2.EB.20

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
2.12.4.4

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
3.12.5

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 SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
RuaIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
RuaThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of RuarsiteHide

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Metallic
Transparency:
Opaque
Colour:
Dark lead-gray
Streak:
Greyish black
Hardness:
6 - 7 on Mohs scale
Hardness:
VHN50=893 kg/mm2 - Vickers
Comment:
VHN = 893 (50 g load) low % Os grains; 734 (50 g load) for 14% Os.
Tenacity:
Brittle
Cleavage:
None Observed
Density:
7.08 g/cm3 (Calculated)

Optical Data of RuarsiteHide

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Anisotropism:
Distinct, bluish gray to light reddish.
Bireflectance:
Bireflectant in oil
Reflectivity:
WavelengthR1 (%)
480nm43.4%
546nm44.1%
589nm43.8%
656nm45.1%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 45.1%.
Colour in reflected light:
Grayish white
Internal Reflections:
None
Comments:
Pale yellowish white to pale grayish yellow-white.

Chemistry of RuarsiteHide

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Mindat Formula:
(Ru,Os)AsS
Element Weights:
Element% weight
Ru48.578 %
As36.010 %
S15.412 %

Calculated from ideal end-member formula.
Common Impurities:
Os,Ir,Pt

Crystallography of RuarsiteHide

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Crystal System:
Monoclinic
Cell Parameters:
a = 5.931 Å, b = 5.915 Å, c = 6.003 Å
β = 112.46°
Ratio:
a:b:c = 1.003 : 1 : 1.015
Unit Cell V:
194.62 ų (Calculated from Unit Cell)
Z:
4
Twinning:
None observed
Comment:
Point Group: n.d.; Space Group: n.d.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
4.03 Å(10)
3.79 Å(100)
3.47 Å(2)
2.96 Å(50)
2.89 Å(1)
2.78 Å(60)
2.74 Å(70)
2.65 Å(5)
2.61 Å(1)
2.55 Å(50)
2.52 Å(30)
2.49 Å(40)
2.28 Å(25)
2.16 Å(30)
2.09 Å(20)
2.02 Å(30)
2.01 Å(60)
1.89 Å(100)
1.868 Å(80)
1.832 Å(60)
1.810 Å(30)
1.762 Å(25)
1.748 Å(20)
1.696 Å(60)
1.658 Å(50)
1.606 Å(10)
1.588 Å(50)
1.450 Å(25)
1.392 Å(30)
1.363 Å(1)
1.324 Å(40)
1.268 Å(35)
1.231 Å(15)
1.196 Å(5)
1.173 Å(5)
1.151 Å(25)
1.139 Å(45)
Comments:
ICDD 27-568 (synthetic)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
26 : Hadean detrital minerals
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Stage 4b: Highly evolved igneous rocks>3.0
37 : Layered igneous intrusions and related PGE minerals

Type Occurrence of RuarsiteHide

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General Appearance of Type Material:
Irregular grains or as aggregates (100-150 µm).
Place of Conservation of Type Material:
Museum of Geology, China.
Geological Setting of Type Material:
In chromium ore from an Alpine-type ultramafic and in placers derived from the weathered ultramafics.
Associated Minerals at Type Locality:

Other Language Names for RuarsiteHide

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Dutch:Ruarsiet
German:Ruarsit
Simplified Chinese:硫砷钌矿
Spanish:Ruarsita

Relationship of Ruarsite to other SpeciesHide

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Other Members of Arsenopyrite Group:
ArsenopyriteFeAsSMon. 2/m : P21/b
Glaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
GudmunditeFeSbSMon. 2/m : P21/b
Osarsite(Os,Ru)AsSMon.

Related Minerals - Strunz-mindat GroupingHide

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2.EB.SelenolauriteRuSe2Iso. m3(2/m3) : Pa3
2.EB.AndrieslombaarditeRhSbSIso. 23 : P213
2.EB.Iridarsenite(Ir,Ru)As2Mon. 2/m : P21/b
2.EB.Kanatzidisite(SbBiS3)2Te2Mon. 2/m : P21/m
2.EB.05aVaesiteNiS2Iso. m3(2/m3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3(2/m3) : Pa3
2.EB.05aLauriteRuS2Iso. m3(2/m3) : Pa3
2.EB.05aGaotaiiteIr3Te8Iso. m3(2/m3) : Pa3
2.EB.05aPenroseite(Ni,Co,Cu)Se2Iso. m3(2/m3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3(2/m3) : Pa3
2.EB.05aVillamanínite(Cu,Ni,Co,Fe)S2Tric.
2.EB.05aErlichmaniteOsS2Iso. m3(2/m3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3(2/m3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3(2/m3) : Pa3
2.EB.05aCattieriteCoS2Iso. m3(2/m3) : Pa3
2.EB.05aAurostibiteAuSb2Iso. m3(2/m3) : Pa3
2.EB.05aTrogtaliteCoSe2Iso. m3(2/m3) : Pa3
2.EB.05a v'Cayeuxite'
2.EB.05aKruťaiteCuSe2Iso. m3(2/m3) : Pa3
2.EB.05aPyriteFeS2Iso. m3(2/m3) : Pa3
2.EB.05aInsizwaitePtBi2Iso. m3(2/m3) : Pa3
2.EB.05bBambollaiteCu(Se,Te)2Tet.
2.EB.05aDzharkeniteFeSe2Iso. m3(2/m3) : Pa3
2.EB.10aMarcasiteFeS2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10eParacostibiteCoSbSOrth. mmm(2/m2/m2/m) : Pbca
2.EB.10fOeniteCoSbAsOrth.
2.EB.10ePararammelsbergiteNiAs2Orth. mmm(2/m2/m2/m) : Pbca
2.EB.10aMattagamiteCoTe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10aFrohbergiteFeTe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aPetříčekiteCuSe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10aKulleruditeNiSe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10aFerroseliteFeSe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15bSeinäjokiteFeSb2Orth.
2.EB.15aRammelsbergiteNiAs2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15cPaxiteCuAs2Mon. 2/m : P21/b
2.EB.15aNisbiteNiSb2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aLöllingiteFeAs2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aSafflorite(Co,Ni,Fe)As2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aOmeiite(Os,Ru)As2Orth.
2.EB.15aAnduoite(Ru,Os)As2Orth.
2.EB.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20Osarsite(Os,Ru)AsSMon.
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.25MayingiteIrBiTeIso. m3(2/m3) : Pa3
2.EB.25MaslovitePtBiTeIso. 23 : P213
2.EB.25ParagersdorffiteNi(As,S)2Iso. m3(2/m3) : Pa3
2.EB.25OrthogersdorffiteNiAsSOrth. mm2 : Pca21
2.EB.25SulfopadmaitePdBiSIso. 23 : P213
2.EB.25JolliffeiteNiAsSeIso. m3(2/m3) : Pa3
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GuixiangiteNiBiSIso. 23 : P213
2.EB.25TestibiopalladitePdSbTeIso.
2.EB.25 va'Antimony-bearing Gersdorffite'Ni(As,Sb)S
2.EB.25KalungaitePdAsSeIso. m3(2/m3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3(2/m3) : Pa3
2.EB.25MicheneritePdBiTeIso. 23 : P213
2.EB.25GersdorffiteNiAsSIso. 23 : P213
2.EB.25MilotaitePdSbSeIso. 23 : P213
2.EB.25TolovkiteIrSbSIso.
2.EB.25'Platarsite'Pt(As,S)2Iso. m3(2/m3) : Pa3
2.EB.25WillyamiteCoSbS
2.EB.25ChangchengiteIrBiSIso. 23 : P213
2.EB.25KvačekiteNiSbSeIso. 23 : P213
2.EB.25KrutoviteNiAs2Iso. 23 : P213
2.EB.25PadmaitePdBiSeIso. 432
2.EB.25UllmanniteNiSbSIso. 23 : P213
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsSIso. m3(2/m3) : Pa3
2.EB.30UrvantsevitePd(Bi,Pb)2Tet. 4/mmm(4/m2/m2/m) : I4/mmm
2.EB.35RheniiteReS2Tric. 1 : P1

Other InformationHide

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Magnetism:
Non-Magnetic
Notes:
Insoluble in 1:1 HCl.
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 RuarsiteHide

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mindat.org URL:
https://www.mindat.org/min-3471.html
Please feel free to link to this page.

References for RuarsiteHide

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Localities for RuarsiteHide

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Showing 48 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Algeria
  • Tamanrasset Province (Tamanghasset Province)
    • Tazrouk District
      • Tazrouk
Augé et al. (2012)
Australia
  • Western Australia
    • Menzies Shire
      • Goongarrie
Salama et al. (2025)
Austria
  • Styria
    • Leoben District
Malitch et al. (2001) +2 other references
      • Sankt Stefan ob Leoben
        • Mitterberg
Malitch et al. (2002)
Melcher+Mali (1998)
Brazil
  • Bahia
Garuti et al. (2007) +1 other reference
Canada
  • Ontario
    • Greater Sudbury
      • Broder Township
Ames et al. (2003)
    • Kenora District
      • Ring of Fire
        • BMA527861 Area
Musa Karkus (2010)
    • Thunder Bay District
Liferovich & Mitchell pers. comm. L. ...
Ames et al. (2017)
Good et al. (2017)
Chile
  • Araucanía
    • Cautín Province
González-Jiménez et al. (2016)
China (TL)
  • Tibet
    • Nagqu
      • Amdo Co. (Anduo Co.)
Yu Tsu-hsiang and Chou Hsueh-tsi (1979) +1 other reference
Costa Rica
  • Guanacaste Province
    • Nicoya Canton
Zaccarini et al. (2010)
Finland
Törnroos et al. (1998)
    • Enontekiö
33rd International Geological Congress (2008)
Greece
  • Central Macedonia
    • Imathia
Tsoupas et al. (2021)
  • Thessaly
    • Larissa
      • Farsala
        • Eretria
Tsikouras et al. (2016)
    • Trikala
      • Meteora
Kapsiotis et al. (2011)
India
  • Karnataka
    • Davanagere District
      • Shimoga schist belt
Devaraju et al. (2005) +1 other reference
  • Odisha
    • Jajapur (Jajpur) District
      • Sukinda ultramafic complex
        • Sukinda Valley
          • Sukinda Mines
Raju et al. (2007)
Kazakhstan
  • Aktobe Region
    • Kargaly District
doi.org (n.d.) +1 other reference
        • Main ore field
          • Dzharlybutak Ore Group
Saveliev et al. (2023)
Saveliev et al. (2023)
Papua New Guinea
  • Oro Province
Cabri et al. (2022)
Philippines
  • Visayas
    • Eastern Visayas Region
      • Samar Island
        • Eastern Samar
Oberthür et al. (2017)
Russia
  • Buryatia
    • Okinsky District
      • Ulan-Sar’dag Ophiolite
Airiyants et al. (2021)
  • Irkutsk Oblast
    • Uda–Biryusa district
Shvedov et al. (2017) +1 other reference
Podlipsky et al. (2015)
  • Krasnoyarsk Krai
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Norilsk-Talnakh Mining Region
Gritsenko et al. (2022)
  • Murmansk Oblast
Gabov (2010)
  • Sayan Mountains
Kiseleva et al. (2014)
  • Sverdlovsk Oblast
    • Kachkanar
Stepanov et al. (2019)
    • Nizhnyaya Tura
Stepanov et al. (2019)
Stepanov et al. (2020)
  • Tuva
    • Kaa-Khemsky District
      • Kaakhem ophiolite belt
Oidup et al. (2012)
South Africa
  • Limpopo
    • Sekhukhune District Municipality
      • Fetakgomo Tubatse Local Municipality
Oberthür et al. (2008)
  • North West
    • Bojanala Platinum District Municipality
      • Rustenburg Local Municipality
Hart et al. (1989)
Spain
  • Andalusia
    • Málaga
      • Ojén
Mineralogy and Petrology: 56: 25-50.
Baurier-Aymat +7 other references
Baurier-Aymat +7 other references
Gervilla et al. (2002)
Tanzania
  • Njombe Region
Evans et al. (2012)
Turkey
  • Kahramanmaraş Province
Uysal (2008)
Ukraine
  • Cherkasy Oblast
    • Zvenyhorodka Raion
Gornostayev et al. (2002)
USA
  • Oregon
    • Jackson County
      • Applegate Mining District
Lyon et al. (1997)
  • Pennsylvania
    • Chester County
Smith and Barnes (2011)
Zimbabwe
  • Midlands
    • Zvishavane District
      • Zvishavane (Shabani; Shabanie; Shavani)
Implats
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