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Arsenopalladinite

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Itabira, Iron Quadrangle, Minas Gerais, Southeast Region, Brazil
© 2007, JGW

Formula:
Pd
 
8
(As,Sb)
 
3
System:TriclinicColour:Yellowish, creamy white ...
Lustre:MetallicHardness:4
This page provides mineralogical data about Arsenopalladinite.

Classification of Arsenopalladinite

IMA status:Approved
Strunz 8th edition ID:2/A.05-40
Nickel-Strunz 10th (pending) edition ID:2.AC.10c

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
C : Alloys of metalloids with PGE
Dana 8th edition ID:2.16.5.1

2 : SULFIDES
16 : Miscellaneous
Hey's CIM Ref.:3.12.29

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
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Type Occurrence of Arsenopalladinite

Type Locality:Itabira, Iron Quadrangle, Minas Gerais, Southeast Region, Brazil
Year of Discovery:1955

Physical Properties of Arsenopalladinite

Lustre:Metallic
Colour:Yellowish, creamy white in reflected light.
Hardness (Mohs):4

Crystallography of Arsenopalladinite

Crystal System:Triclinic
Cell Parameters:a = 7.43Å, b = 13.95Å, c = 7.35Å
α = 92.88°, β = 119.5°, γ = 87.85°
Ratio:a:b:c = 0.533 : 1 : 0.527
Unit Cell Volume:V 662.14 ų (Calculated from Unit Cell)

Chemical Properties of Arsenopalladinite

Formula:
Pd
 
8
(As,Sb)
 
3
Essential elements:As, Pd
All elements listed in formula:As, Pd, Sb
Common Impurities:Cu

Relationship of Arsenopalladinite to other Species

Related to:
  • Arsenopalladinite Group
    • Related Minerals - Nickel-Strunz Grouping):

    - +
    2.AC.05aAtheneite
    (Pd,Hg)
     
    3
    		As
    2.AC.05bVincentite
    Pd
     
    3
    		As
    2.AC.10bMertieite-II
    Pd
     
    8
    		(Sb,As)
     
    3
    2.AC.10aStillwaterite
    Pd
     
    8
    		As
     
    3
    2.AC.15aIsomertieite
    Pd
     
    11
    		Sb
     
    2
    		As
     
    2
    2.AC.15bMertieite-I
    Pd
     
    11
    		(Sb,As)
     
    4
    2.AC.15aMiessiite
    Pd
     
    11
    		Te
     
    2
    		Se
     
    2
    2.AC.20bPalarstanide
    Pd
     
    8
    		(As,Sn)
     
    3
    2.AC.20aStibiopalladinite
    Pd
     
    5
    		Sb
     
    2
    2.AC.20cMenshikovite
    Pd
     
    3
    		Ni
     
    2
    		As
     
    3
    2.AC.25eMajakite
    PdNiAs
    2.AC.25aPalladoarsenide
    Pd
     
    2
    		As
    2.AC.25fPalladobismutharsenide
    Pd
     
    2
    		(As,Bi)
    2.AC.25cPalladodymite
    (Pd,Rh)
     
    2
    		As
    2.AC.25bRhodarsenide
    (Rh,Pd)
     
    2
    		As
    2.AC.25dNaldrettite
    Pd
     
    2
    		Sb
    2.AC.30UM1999-02-As:NiRh
    (Rh,Ni)
     
    7
    		As
     
    4
    2.AC.30Polkanovite
    Rh
     
    12
    		As
     
    7
    2.AC.35aGenkinite
    (Pt,Pd,Rh)
     
    4
    		Sb
     
    3
    2.AC.35bUngavaite
    Pd
     
    4
    		Sb
     
    3
    2.AC.40Polarite
    Pd(Bi,Pb)
    2.AC.45cBorishanskiite
    Pd
     
    1+x
    		(As,Pb)
     
    2
    		 , x = 0-0.2
    2.AC.45aFroodite
    α-PdBi
     
    2
    2.AC.45bIridarsenite
    (Ir,Ru)As
     
    2
    Related Minerals - Hey's Index Grouping:

    - +
    3.12.1Seinäjokite
    (Fe,Ni)(Sb,As)
     
    2
    3.12.2Laurite
    RuS
     
    2
    3.12.3Ruthenarsenite
    (Ru,Ni)As
    3.12.4Anduoite
    (Ru,Os)As
     
    2
    3.12.5Ruarsite
    (Ru,Os)AsS
    3.12.6Xingzhongite
    (Pb,Cu,Fe)(Ir,Pt,Rh)
     
    2
    		S
     
    4
    3.12.7Rhodplumsite
    Rh
     
    3
    		Pb
     
    2
    		S
     
    2
    3.12.8Cuprorhodsite
    (Cu,Fe)Rh
     
    2
    		S
     
    4
    3.12.9Konderite
    Cu
     
    3
    		Pb(Rh,Pt,Ir)
     
    8
    		S
     
    16
    3.12.10Bowieite
    (Rh,Ir,Pt)
     
    2
    		S
     
    3
    3.12.11Cherepanovite
    RhAs
    3.12.12Hollingworthite
    (Rh,Pt,Pd)AsS
    3.12.13Vysotskite
    (Pd,Ni)S
    3.12.14Vasilite
    (Pd,Cu)
     
    16
    		(S,Te)
     
    7
    3.12.15Palladseite
    Pd
     
    17
    		Se
     
    15
    3.12.16Oosterboschite
    (Pd,Cu)
     
    7
    		Se
     
    5
    3.12.17Telluropalladinite
    Pd
     
    9
    		Te
     
    4
    3.12.18Temagamite
    Pd
     
    3
    		HgTe
     
    3
    3.12.19Sopcheite
    Ag
     
    4
    		Pd
     
    3
    		Te
     
    4
    3.12.20Michenerite
    PdBiTe
    3.12.21Kotulskite
    Pd(Te,Bi)
     
    1-2
    3.12.22Telargpalite
    (Pd,Ag)
     
    3
    		(Te,Bi)
    3.12.23Merenskyite
    (Pd,Pt)(Te,Bi)
     
    2
    3.12.24Palladoarsenide
    Pd
     
    2
    		As
    3.12.25Stillwaterite
    Pd
     
    8
    		As
     
    3
    3.12.26Atheneite
    (Pd,Hg)
     
    3
    		As
    3.12.27Majakite
    PdNiAs
    3.12.28Palarstanide
    Pd
     
    8
    		(As,Sn)
     
    3
    3.12.30Vincentite
    Pd
     
    3
    		As
    3.12.31Palladobismutharsenide
    Pd
     
    2
    		(As,Bi)
    3.12.32Stibiopalladinite
    Pd
     
    5
    		Sb
     
    2
    3.12.33Hexatestibiopanickelite
    Ni(Te,Sb)
    3.12.34Sudburyite
    (Pd,Ni)Sb
    3.12.35Testibiopalladite
    PdTe(Sb,Te)
    3.12.36Borovskite
    Pd
     
    3
    		SbTe
     
    4
    3.12.37Isomertieite
    Pd
     
    11
    		Sb
     
    2
    		As
     
    2
    3.12.38Mertieite-I
    Pd
     
    11
    		(Sb,As)
     
    4
    3.12.39Mertieite-II
    Pd
     
    8
    		(Sb,As)
     
    3
    3.12.40Sobolevskite
    PdBi
    3.12.41Froodite
    α-PdBi
     
    2
    3.12.42Polarite
    Pd(Bi,Pb)
    3.12.43Urvantsevite
    Pd(Bi,Pb)
     
    2
    3.12.44Cooperite
    (Pt,Pd,Ni)S
    3.12.45Braggite
    (Pt,Pd,Ni)S
    3.12.46Kharaelakhite
    (Pt,Cu,Pb,Fe,Ni)
     
    9
    		S
     
    8
    3.12.47Malanite
    Cu(Pt
    3+
     
    		,Ir
    3+
     
    		)
     
    2
    		S
     
    4
    3.12.48Moncheite
    (Pt,Pd)(Te,Bi)
     
    2
    3.12.49Maslovite
    PtBiTe
    3.12.50Sperrylite
    PtAs
     
    2
    3.12.51Platarsite
    (Pt,Rh,Ru)AsS
    3.12.52Geversite
    PtSb
     
    2
    3.12.53Daomanite
    CuPtAsS
     
    2
    3.12.54Genkinite
    (Pt,Pd,Rh)
     
    4
    		Sb
     
    3
    3.12.55Stumpflite
    Pt(Sb,Bi)
    3.12.56Insizwaite
    Pt(Bi,Sb)
     
    2
    3.12.57Erlichmanite
    OsS
     
    2
    3.12.58Omeiite
    (Os,Ru)As
     
    2
    3.12.59Osarsite
    (Os,Ru)AsS
    3.12.60Kashinite
    (Ir,Rh)
     
    2
    		S
     
    3
    3.12.61Inaglyite
    Cu
     
    3
    		Pb(Ir,Pt)
     
    8
    		S
     
    16
    3.12.62Cuproiridsite
    (Cu,Fe)Ir
     
    2
    		S
     
    4
    3.12.63Iridarsenite
    (Ir,Ru)As
     
    2
    3.12.64Irarsite
    (Ir,Ru,Rh,Pt)AsS
    3.12.65Tolovkite
    IrSbS

    Other Names for Arsenopalladinite

    Other Languages:
    German:Arsenopalladinit
    Spanish:Arsenopalladinita

    Other Information

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

    References for Arsenopalladinite

    Reference List:American Mineralogist (1974): 59: 1332.

    Mineralogical Magazine (1974): 39: 528-543.

    American Mineralogist (1979): 64: 658.

    Cabri, L.J., Clark, A.M., and Chen, T.T. (1977) Arsenopalladinite from Itabira, Brazil, and from the Stillwater Complex, Montana. Canadian Mineralogist: 15: 70-73.

    Mineralogical Magazine (1994): 59: 455-463.

    Internet Links for Arsenopalladinite

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  • Arsenopalladinite details from Handbook of Mineralogy (PDF)
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    Localities for Arsenopalladinite

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    The 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.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Iron Quadrangle
    		Canadian Mineralogist: 15: 70-73; Chem. Index of Minerals (1955) p. 23 and 339; Min.Mag.(1974): 39, 528-543
    CanMin 34:547-557
    China
     
    • Yunnan Province
      • Dali Autonomous Prefecture
        • Midu Co.
    		Huanbin Song, Mingqin He, Shangzhong Zhang, and Fenghuang Yi (2008): Chinese Journal of Geochemistry 27, 104-108.
    Finland
     
    • Lapin (Lapland) Lääni
      • Inari
        • Lemmenjoki
    		33rd International Geological Congress (2008) session MPM-04 Platinum-group mineralogy: Pt-Pd selenides from river placers, northern Finland
      • Portimo complex
    		Econ Geol (1986) 81:1236-1241
    Japan
     
    • Hokkaido Island
    		The Mineral Species of Japan (5th ed) Matsubara
    Norway
     
    • Finnmark
      • Porsanger
    		No reference listed
    Russia
     
    • Eastern-Siberian Region
      • Taymyrskiy Autonomous Okrug
        • Taimyr Peninsula
          • Putoran Plateau
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Monche-Tundra
            • Monchegorsk
    		33 IGC excursion No 48, August 15 – 21, 2008
    South Africa
     
    • Limpopo Province
    		Minerals of South Africa
    USA
     
    • Montana
      • Stillwater Co.
    		Canadian Mineralogist (1977): 15: 70-73.
          • J-M Reef (Howland Reef)
    		www.cannonmicroprobe.com/Mineral_Specimens.htm
    Mineral and/or Locality
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