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About RhodarsenideHide

4 - 5
Specific Gravity:
11.32 (Calculated)
Crystal System:
Named after its chemical composition of rhodium and arsenic.
This page provides mineralogical data about Rhodarsenide.

Classification of RhodarsenideHide

First published:

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
C : Alloys of metalloids with PGE

Physical Properties of RhodarsenideHide

4 - 5 on Mohs scale
VHN25=515 kg/mm2 - Vickers
11.32 g/cm3 (Calculated)

Optical Data of RhodarsenideHide

moderate from dark brown to greenish grey
Colour in reflected light:
brownish with a pale-green tinge.
brownish to greenish in oil

Chemical Properties of RhodarsenideHide

IMA Formula:

Crystallography of RhodarsenideHide

Crystal System:
Cell Parameters:
a = 5.866(5) Å, b = 3.893(2) Å, c = 7.302(4) Å
a:b:c = 1.507 : 1 : 1.876
Unit Cell V:
166.75 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
2.237 Å(100)
2.067 Å(80)
2.426 Å(70)

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of RhodarsenideHide

General Appearance of Type Material:
irregular inclusions
Place of Conservation of Type Material:
Mineralogical Museum of the University of Hamburg,
Geological Setting of Type Material:
placer platinum deposits derived from chromites in ophiolite complex
Associated Minerals at Type Locality:
Tarkian, M., Krstic, S., Klaska, K.-H., Ließmann, W. (1997) Rhodarsenide, (Rh,Pd)2As, a new mineral. European Journal of Mineralogy: 9: 1321-1325.

Synonyms of RhodarsenideHide

Other Language Names for RhodarsenideHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Rhodarsenide associated with Osmium(Os,Ir,Ru)
1 photo of Rhodarsenide associated with IsoferroplatinumPt3Fe
1 photo of Rhodarsenide associated with HongshiitePtCu

Related Minerals - Nickel-Strunz GroupingHide

2.AC.TörnroositePd11As2Te2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.05aAtheneitePd2As0.75Hg0.25Hex. 6 m2 : P62m
2.AC.10cArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
2.AC.10bMertieite-IIPd8Sb2.5As0.5Trig. 3m (3 2/m) : R3c
2.AC.15aIsomertieitePd11Sb2As2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.15aMiessiitePd11Te2Se2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.20cMenshikovitePd3Ni2As3Hex. 6/m : P63/m
2.AC.25aPalladoarsenidePd2AsMon. 2/m : P2/m
2.AC.25dNaldrettitePd2SbOrth. mm2 : Cmc21
2.AC.35aGenkinite(Pt,Pd,Rh)4Sb3Tet. 4 2 2
2.AC.35bUngavaitePd4Sb3Tet. 4 2 2 : P41 21 2
2.AC.40PolaritePd(Bi,Pb)Orth. mm2 : Cmc21
2.AC.45cBorishanskiitePd1+x(As,Pb)2 , x = 0-0.2Orth. mm2
2.AC.45aFrooditeα-PdBi2Mon. 2/m : B2/m

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 RhodarsenideHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Tarkian, M., Krstic, S., Klaska, K.-H., Ließmann, W. (1997) Rhodarsenide, (Rh,Pd)2As, a new mineral. European Journal of Mineralogy: 9: 1321-1325.
Mineralogical Record: 29: 476.
Jambor, J.L., Pertsev, N.N., Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 907-911.

Internet Links for RhodarsenideHide

Localities for RhodarsenideHide

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

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
  • Ontario
    • Thunder Bay District
      • Coldwell complex
Mcdonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J., Lane, G., Spratt, J. & Ames, D.E. (2015) Coldwellite, Pd3Ag2S, a new mineral species from the Marathon deposit, Coldwell complex, Ontario, Canada. Canadian Mineralogist 53, 1-13.
  • Bashkortostan
    • Uchalinsky District
Pavel M. Kartashov analytical data 2018
  • Chukotka Autonomous Okrug
    • Bilibinsky District
      • Kolyma area
        • Bol'shoi Anyui River Basin
          • Baimka River
            • Aluchinskii Massif (Aluchin horst)
Gornostayev, S.S., Crocket, J.H., Mochalov, A.G., and Lajoki, K.V.O. (1999) The platinum-group minerals of the Baimka placer deposits, Aluchin horst, Russian Far East. Canadian Mineralogist: 37: 1117-1129.
  • Kamchatka Krai
Sidorov, E. G., Tolstykh, N. D., Podlipsky, M. Y., & Pakhomov, I. O. (2004). Placer PGE minerals from the Filippa clinopyroxenite-dunite massif (Kamchatka). Geologiya i Geofizika (Russian Geology and Geophysics), 45(9), 1128-1144.
Tolstykh, N.D., Sidorov, E., Laajoki, K., Krivenko, A., Podlipskiy, M. (2000) The association of platinum-group minerals in placers of the Pustaya River, Kamchatka, Russia. Canadian Mineralogist: 38: 1251-1264.
  • Kemerovo Oblast
Nesterenko, G. V., Zhmodik, S. M., Airiyants, E. V., Belyanin, D. K., Kolpakov, V. V., & Bogush, A. A. (2017). Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia). Ore Geology Reviews, 91, 236-245.; Zhmodik, S. M., Nesterenko, G. V., Airiyants, E. V., Belyanin, D. K., Kolpakov, V. V., Podlipsky, M. Y., & Karmanov, N. S. (2016). Alluvial platinum-group minerals as indicators of primary PGE mineralization (placers of southern Siberia). Russian Geology and Geophysics, 57(10), 1437-1464.; Nesterenko, G.V.; Zhmodik, S.M.; Belyanin, D.K.; Airiyants, E.V.; Karmanov, N.S. (2019) Micrometric Inclusions in Platinum-Group Minerals from Gornaya Shoria, Southern Siberia, Russia: Problems and Genetic Significance. Minerals 9, 327.; Nesterenko, G. V., Zhmodik, S. M., Belyanin, D. K., Airiyants, E. V., & Karmanov, N. S. (2019) Micrometric inclusions in platinum-group minerals from Gornaya Shoria, Southern Siberia, Russia: Problems and genetic significance. Minerals, 9(5), 327.
  • Sakha Republic (Yakutia)
    • Anabar River basin
Airiyants, E. V., Zhmodik, S. M., Ivanov, P. O., Belyanin, D. K., & Agafonov, L. V. (2014). Mineral inclusions in Fe-Pt solid solution from the alluvial ore occurrences of the Anabar basin (northeastern Siberian Platform). Russian Geology and Geophysics, 55(8), 945-958.
Serbia (TL)
  • Central Serbia
    • Rasina District
      • Trstenik
        • Veluće
Tarkian M, Krstic S, Klaska K-H, Ließmann W (1997) Rhodarsenide, (Rh,Pd)2As, a new mineral. European Journal of Mineralogy 9, 1321-1325
South Africa
  • Limpopo
    • Sekhukhune District
      • Burgersfort
The Canadian Mineralogist Vol. 43, pp. 1711-1734 (2005)
Mineral and/or Locality  
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