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Anduoite

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Formula:
(Ru,Os)As2
Colour:
Pinkish-white
Lustre:
Metallic
Hardness:
6½ - 7
Specific Gravity:
8.692 (Calculated)
Crystal System:
Orthorhombic
Name:
For the type locality
Hide all sections | Show all sections

Classification of AnduoiteHide

Approved
Notes:
Published without approval
Approval History:
Unnamed, but probably valid.
2.EB.15a

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.
2.12.2.8

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
3.12.4

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

Physical Properties of AnduoiteHide

Metallic
Transparency:
Opaque
Colour:
Pinkish-white
Streak:
Grayish black
Hardness:
6½ - 7 on Mohs scale
Hardness:
VHN50=1077.9 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Distinct/Good
One direction observed
Density:
8.692 g/cm3 (Calculated)

Optical Data of AnduoiteHide

Type:
Anisotropic
Anisotropism:
Marked in air from brownish yellow to grayish green, pale red to pale green; pronounced in oil from reddish yellow, greenish yellow to purplish gray
Colour in reflected light:
White with pink tint
Pleochroism:
Visible
Comments:
From pinkish grayish white to pinkish white; distinct in oil

Chemical Properties of AnduoiteHide

Formula:
(Ru,Os)As2
IMA Formula:
RuAs2
Common Impurities:
Ir,Cu,Sb,S

Crystallography of AnduoiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 5.41 Å, b = 6.206 Å, c = 3.01 Å
Ratio:
a:b:c = 0.872 : 1 : 0.485
Unit Cell V:
101.06 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Massive grains

Type Occurrence of AnduoiteHide

General Appearance of Type Material:
Massive grains or granular aggregates, 60-100µm in size, and of lead gray, dull metallic luster.
Place of Conservation of Type Material:
Chinese Geological museum
Geological Setting of Type Material:
Chromium deposit related to augite peridotite and dunite. Host rock is an altered dunite.
Associated Minerals at Type Locality:

Other Language Names for AnduoiteHide

French:Andouoite
Simplified Chinese:安多矿

Relationship of Anduoite to other SpeciesHide

Other Members of this group:
AlloclasiteCo1-xFexAsSMon. 2 : P21
ClinosaffloriteCoAs2Mon. 2/m : P21/m
CostibiteCoSbSOrth. mm2 : Pmn21
LöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
NisbiteNiSb2Orth.
OeniteCoSbAsOrth.
Omeiite(Os,Ru)As2Orth.
ParacostibiteCoSbSOrth.
PararammelsbergiteNiAs2Orth.
RammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
Safflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
Unnamed (Fe-Ni Antimonide Arsenide)(Fe,Ni)SbAs
Forms a series with:

Related Minerals - Nickel-Strunz GroupingHide

2.EB.05aAurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
2.EB.05bBambollaiteCu(Se,Te)2Tet.
2.EB.05aCattieriteCoS2Iso. m3 (2/m 3) : Pa3
2.EB.05aErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3 (2/m 3) : Pa3
2.EB.05aInsizwaitePt(Bi,Sb)2
2.EB.05aKrut'aiteCuSe2Iso. m3 (2/m 3) : Pa3
2.EB.05aLauriteRuS2Iso. m3 (2/m 3) : Pa3
2.EB.05aPenroseite(Ni,Co,Cu)Se2Iso. m3 (2/m 3) : Pa3
2.EB.05aPyriteFeS2Iso. m3 (2/m 3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3 (2/m 3) : Pa3
2.EB.05aTrogtaliteCoSe2
2.EB.05aVaesiteNiS2Iso. m3 (2/m 3) : Pa3
2.EB.05aVillamaninite(Cu,Ni,Co,Fe)S2
2.EB.05aDzharkeniteFeSe2Iso.
2.EB.05aGaotaiiteIr3Te8Iso.
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10aFerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aKulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aMarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aMattagamiteCoTe2Orth.
2.EB.10eParacostibiteCoSbSOrth.
2.EB.10ePararammelsbergiteNiAs2Orth.
2.EB.10fOeniteCoSbAsOrth.
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15aLöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aNisbiteNiSb2Orth.
2.EB.15aOmeiite(Os,Ru)As2Orth.
2.EB.15cPaxiteCuAs2Mon.
2.EB.15aRammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aSafflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15bSeinäjokite(Fe,Ni)(Sb,As)2Orth.
2.EB.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.20Osarsite(Os,Ru)AsSMon.
2.EB.20Ruarsite(Ru,Os)AsSMon.
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GersdorffiteNiAsSIso. m3 (2/m 3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3)
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsSIso.
2.EB.25JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
2.EB.25KrutoviteNiAs2Iso.
2.EB.25MaslovitePtBiTe
2.EB.25MicheneritePdBiTe
2.EB.25PadmaitePdBiSeIso.
2.EB.25PlatarsitePtAsSIso.
2.EB.25TestibiopalladitePdTe(Sb,Te)Iso.
2.EB.25TolovkiteIrSbSIso.
2.EB.25UllmanniteNiSbSIso. 2 3 : P21 3
2.EB.25Willyamite(Co,Ni)SbS
2.EB.25ChangchengiteIrBiSIso.
2.EB.25MayingiteIrBiTeIso.
2.EB.25Hollingsworthite(Rh,Pt,Pd)AsS
2.EB.25KalungaitePdAsSeIso. m3 (2/m 3) : Pa3
2.EB.25MilotaitePdSbSeIso. 2 3 : P21 3
2.EB.30UrvantsevitePd(Bi,Pb)2Tet.
2.EB.35RheniiteReS2Tric.

Related Minerals - Dana Grouping (8th Ed.)Hide

2.12.2.1MarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.2FerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.3FrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.5MattagamiteCoTe2Orth.
2.12.2.6KulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.7Omeiite(Os,Ru)As2Orth.
2.12.2.9LöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.10Seinäjokite(Fe,Ni)(Sb,As)2Orth.
2.12.2.11Safflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.12RammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.13NisbiteNiSb2Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.12.1Seinäjokite(Fe,Ni)(Sb,As)2Orth.
3.12.2LauriteRuS2Iso. m3 (2/m 3) : Pa3
3.12.3Ruthenarsenite(Ru,Ni)AsOrth.
3.12.5Ruarsite(Ru,Os)AsSMon.
3.12.6Xingzhongite(Pb,Cu,Fe)(Ir,Pt,Rh)2S4Iso.
3.12.7RhodplumsiteRh3Pb2S2Trig.
3.12.8Cuprorhodsite(Cu,Fe)Rh2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.12.9KonderiteCu3Pb(Rh,Pt,Ir)8S16Hex. 6/m : P6/m
3.12.10Bowieite(Rh,Ir,Pt)2S3Orth. mmm (2/m 2/m 2/m)
3.12.11CherepanoviteRhAsOrth. mmm (2/m 2/m 2/m) : Pnma
3.12.12Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3)
3.12.13Vysotskite(Pd,Ni)STet.
3.12.14Vasilite(Pd,Cu)16(S,Te)7
3.12.15PalladseitePd17Se15
3.12.16Oosterboschite(Pd,Cu)7Se5Orth.
3.12.17TelluropalladinitePd9Te4Mon.
3.12.18TemagamitePd3HgTe3Trig. 3m : P3m1
3.12.19SopcheiteAg4Pd3Te4Orth.
3.12.20MicheneritePdBiTe
3.12.21KotulskitePd(Te,Bi)Hex.
3.12.22Telargpalite(Pd,Ag)3(Te,Bi)Iso.
3.12.23Merenskyite(Pd,Pt)(Te,Bi)2Trig. 3m : P3m1
3.12.24PalladoarsenidePd2AsMon. 2/m : P2/m
3.12.25StillwateritePd8As3Trig.
3.12.26AtheneitePd2As0.75Hg0.25Hex. 6 m2 : P62m
3.12.27MajakitePdNiAsHex.
3.12.28PalarstanidePd5(Sn,As)2Hex.
3.12.29ArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
3.12.30VincentitePd3AsTet.
3.12.31PalladobismutharsenidePd2(As,Bi)Orth.
3.12.32StibiopalladinitePd5Sb2Hex.
3.12.33Hexatestibiopanickelite(Pd,Ni)(Sb,Te)Hex.
3.12.34Sudburyite(Pd,Ni)SbHex.
3.12.35TestibiopalladitePdTe(Sb,Te)Iso.
3.12.36BorovskitePd3SbTe4Iso.
3.12.37IsomertieitePd11Sb2As2Iso. m3m (4/m 3 2/m) : Fd3m
3.12.38Mertieite-IPd11(Sb,As)4Hex.
3.12.39Mertieite-IIPd8Sb2.5As0.5Trig. 3m (3 2/m) : R3c
3.12.40SobolevskitePd(Bi,Te)Hex.
3.12.41Frooditeα-PdBi2Mon. 2/m : B2/m
3.12.42PolaritePd(Bi,Pb)Orth. mm2 : Cmc21
3.12.43UrvantsevitePd(Bi,Pb)2Tet.
3.12.44CooperitePtSTet. 4/mmm (4/m 2/m 2/m) : P42/mmc
3.12.45Braggite(Pt,Pd,Ni)STet.
3.12.46Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8Orth. mmm (2/m 2/m 2/m) : Pmmm
3.12.47MalaniteCu(Pt3+,Ir3+)2S4Iso.
3.12.48Moncheite(Pt,Pd)(Te,Bi)2Trig.
3.12.49MaslovitePtBiTe
3.12.50SperrylitePtAs2Iso. m3 (2/m 3) : Pa3
3.12.51PlatarsitePtAsSIso.
3.12.52GeversitePtSb2Iso. m3 (2/m 3) : Pa3
3.12.53DaomaniteCuPtAsS2Orth.
3.12.54Genkinite(Pt,Pd,Rh)4Sb3Tet. 4 2 2
3.12.55StumpflitePt(Sb,Bi)Hex.
3.12.56InsizwaitePt(Bi,Sb)2
3.12.57ErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
3.12.58Omeiite(Os,Ru)As2Orth.
3.12.59Osarsite(Os,Ru)AsSMon.
3.12.60Kashinite(Ir,Rh)2S3Orth.
3.12.61InaglyiteCu3Pb(Ir,Pt)8S16Hex.
3.12.62Cuproiridsite(Cu,Fe)Ir2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.12.63Iridarsenite(Ir,Ru)As2Mon.
3.12.64Irarsite(Ir,Ru,Rh,Pt)AsSIso.
3.12.65TolovkiteIrSbSIso.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for AnduoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Holseth, H., Kjekshus, A. (1968) Compounds with the marcasite type crystal structure. I. Compositions of the binary pnictides. Acta Chemica Scandinavica: 22: 3273-3283.
Kjekshus, A., Rakke, T., Andresen, A.F. (1977) Compounds with the marcasite type crystal structure. XII. Structural data for RuP2, RuAs2, RuSb2, OsP2, OsAs2, OsSb2. Acta Chemica Scandinavica: A31: 253-259.
Tsu-hsiang, Y., Hsueh-tsi, C. (1979) Anduoite, a new ruthenium arsenide. Kexue Tongbao (Chinese Science Bulletin): 24(15): 704-708. [in Chinese with English abstract]
Chao, G.Y. (1980) New mineral names. American Mineralogist: 65: 808-809.
(1981) Can. Inst. Mineral. Met.: 95-96.
Gornostayev, S.S., Ohnenstetter, M., Neziraj, A., Ohnenstetter, D., Laajoki, K.V.O., Popovchenko, S.E., Kornienko, P.K. (2001) New occurrences of anduoite, (Ru,Os)As2, from chromite deposits of Ukraine and Albania. The Canadian Mineralogist: 39: 591-606.

Internet Links for AnduoiteHide

Localities for AnduoiteHide

ⓘ - Click for 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). 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Albania
 
  • Kukës County
    • Tropoja ophiolitic Massif
Gornostayev, S.S., Ohnenstetter, M., Neziraj, A., Ohnenstetter, D., Laajoki, K.V.O., Popovchenko, S.E., and Kornienko, P.K. (2001): Canadian Mineralogist 39(2), 591-606.
Canada
 
  • Ontario
    • Thunder Bay District
      • Coldwell complex
Ames, D.E., Kjarsgaard, I.M., McDonald, A.M. & Good, D.J. (2017) Insights into the extreme PGE enrichment of the W Horizon, Marathon Cu-Pd deposit, Coldwell Alkaline Complex, Canada: Platinum-group mineralogy, compositions and genetic implications. Ore Geplogy Reviews 2017, xx-xx.
China (TL)
 
  • Tibet Autonomous Region
    • Nagchu Prefecture (Naqu Prefecture)
      • Amdo Co. (Anduo Co.)
Yu, T., and Chou, H. (1979): Kexue Tongbao 15, 704-708.
Finland
 
  • Eastern Finland Region
No reference listed
Greece
 
  • Epirus Department (Ipeiros)
    • Pindos Mtn
      • Pindos ophiolite complex
Argirios Kapsiotis, Tassos A. Grammatikopoulos, Basilios Tsikouras, Konstantin Hatzipanagiotou, Federica Zaccarini und Giorgio Garuti (2011): Mineralogy, composition and PGM of chromitites from Pefki, Pindos ophiolite complex (NW Greece): evidence for progressively elevated fAs conditions in the upper mantle sequence. Mineralogy and Petrology 101, 129-150.
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
Barkov, A. Y., Tolstykh, N. D., Shvedov, G. I., & Martin, R. F. (2018). Ophiolite-related associations of platinum-group minerals at Rudnaya, western Sayans, and Miass, southern Urals, Russia. Mineralogical Magazine, 1-32.
Ukraine
 
  • Cherkasy Oblast'
    • Zvenyhorodka
Gornostayev, S.S., Ohnenstetter, M., Neziraj, A., Ohnenstetter, D., Laajoki, K.V.O., Popovchenko, S.E., and Kornienko, P.K. (2001): Canadian Mineralogist 39(2), 591-606.
Mineral and/or Locality  
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