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Palladseite

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About PalladseiteHide

Formula:
Pd17Se15
Lustre:
Metallic
Hardness:
4½ - 5
Specific Gravity:
8.30
Crystal System:
Isometric
Name:
Named for its chemical composition (Pd and Se).
Chemically related to verbeekite and UM1995-39-Se:Pd.


Classification of PalladseiteHide

Approved
2.BC.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
C : With Rh, Pd, Pt, etc.
2.16.19.1

2 : SULFIDES
16 : Miscellaneous
3.12.15

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 PalladseiteHide

Metallic
Transparency:
Opaque
Hardness:
4½ - 5 on Mohs scale
Hardness:
VHN100=414 - Vickers
Density:
8.30 g/cm3 (Measured)    8.33 g/cm3 (Calculated)

Optical Data of PalladseiteHide

Colour in reflected light:
white in air and in plane polarized light, and a very light grey in oil

Chemical Properties of PalladseiteHide

Formula:
Pd17Se15
Common Impurities:
Cu,Hg

Crystallography of PalladseiteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Cell Parameters:
a = 10.606 Å
Unit Cell V:
1,193.04 ų (Calculated from Unit Cell)
Z:
2
Comment:
On synthetic material - Pm3m

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009271PalladseiteGeller S (1962) The crystal structure of Pd17Se15 Acta Crystallographica 15 713-7211962synthetic0293
0009272PalladseiteGeller S (1962) The crystal structure of Pd17Se15 Acta Crystallographica 15 713-7211962synthetic0293
0009273PalladseiteGeller S (1962) The crystal structure of Pd17Se15 Acta Crystallographica 15 713-7211962synthetic0293
CIF Raw Data - click here to close

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of PalladseiteHide

General Appearance of Type Material:
Grains up to 0.5mm
Geological Setting of Type Material:
Placer deposit
Associated Minerals at Type Locality:

Synonyms of PalladseiteHide

Other Language Names for PalladseiteHide

German:Palladseit
Spanish:Palladseita

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Palladseite associated with GoldAu
1 photo of Palladseite associated with PalladinitePdO

Related Minerals - Nickel-Strunz GroupingHide

2.BC.UM2004-45-Se:AgHgPd(Ag,Cu)6Hg2Pd2Se3
2.BC.ColdwellitePd3Ag2SIso. 4 3 2 : P43 3 2
2.BC.05MiassiteRh17S15Iso.
2.BC.05UM2000-47-S:CuFePdPtPtPd(Fe,Cu)S
2.BC.10Oosterboschite(Pd,Cu)7Se5Orth.
2.BC.15ChrisstanleyiteAg2Pd3Se4Mon.
2.BC.15JagüéiteCu2Pd3Se4Mon. 2/m : P21/b
2.BC.20KeithconnitePd20Te7Trig.
2.BC.25Vasilite(Pd,Cu)16(S,Te)7Iso.
2.BC.30TelluropalladinitePd9Te4Mon.
2.BC.35LuberoitePt5Se4Mon. 2/m : P21/b
2.BC.40Oulankaite(Pd,Pt)5(Cu,Fe)4SnTe2S2Tet.
2.BC.45Telargpalite(Pd,Ag)3(Te,Bi)Iso.
2.BC.50TemagamitePd3HgTe3Trig. 3m : P3m1
2.BC.55SopcheiteAg4Pd3Te4Orth.
2.BC.60LaflammeitePd3Pb2S2Mon.
2.BC.65TischendorfitePd8Hg3Se9Orth.

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.
3.12.4Anduoite(Ru,Os)As2Orth.
3.12.5Ruarsite(Ru,Os)AsSMon.
3.12.6XingzhongitePb2+Ir3+2S4Iso.
3.12.7RhodplumsiteRh3Pb2S2Trig.
3.12.8Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh3+2S4Iso. 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)7Iso.
3.12.16Oosterboschite(Pd,Cu)7Se5Orth.
3.12.17TelluropalladinitePd9Te4Mon.
3.12.18TemagamitePd3HgTe3Trig. 3m : P3m1
3.12.19SopcheiteAg4Pd3Te4Orth.
3.12.20MicheneritePdBiTeIso. 2 3 : P21 3
3.12.21KotulskitePd(Te,Bi)2-x (x ≈ 0.4)Hex.
3.12.22Telargpalite(Pd,Ag)3(Te,Bi)Iso.
3.12.23MerenskyitePdTe2Trig. 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.
3.12.34SudburyitePdSbHex.
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
3.12.40SobolevskitePdBiHex.
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
3.12.47MalaniteCu1+(Ir3+Pt4+)S4Iso.
3.12.48Moncheite(Pt,Pd)(Te,Bi)2Trig.
3.12.49MaslovitePtBiTeIso. 2 3 : P21 3
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
3.12.55StumpflitePtSbHex.
3.12.56InsizwaitePt(Bi,Sb)2Iso. m3 (2/m 3) : Pa3
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 PalladseiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Davis, R.J., Clark, A.M., Criddle, A.J. (1977) Palladseite, a new mineral from ltabira, Minas Gerais, Brazil. Mineralogical Magazine, 41, 123.
Fleischer, M., Pabst, A., Mandarino, J.A., Chao, G.Y. (1977) New Mineral Names. American Mineralogist, 62, 1057-1061.

Internet Links for PalladseiteHide

Localities for PalladseiteHide

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.
Australia
 
  • Northern Territory
    • West Arnhem Region
      • South Alligator River
Cuzens, H. (2010) The Genesis and Spatial Distribution of Platinum-Group Elements in the Coronation Hill Deposit, Northern Territory, Australia. University of Western Australia.
Brazil (TL)
 
  • Minas Gerais
Mineralogical Magazine(1977) 41, 123 and M10-13
MinMag 66:327; Alexandre Raphael Cabral, Georges Beaudoin, Bernd Lehmann, Henry Francisco Galbiatti (2005) S/Se ratios in palladiferous gold coexisting with palladseite, Cauê iron ore deposit, Itabira district, Quadrilátero Ferrífero of Minas Gerais, Brazil. GEOCHMISTRY, MINERALOGY AND PETROLOGY • 4 3 • SOFIA • 2005 pp35-40
  • Pará
    • Carajás mineral province
      • Curionópolis
http://pubs.nrc-cnrc.gc.ca/mineral/tcm-145140-5.html; Cabral, A. R. (2006). Palladiferous gold mineralisation (ouro preto) in Brazil: Gongo Soco, Itabira and Serra Pelada. Sonderhefte Reihe D - Geol. Jahrb., Heft 8; Berni, G. V., Heinrich, C. A., Lobato, L. M., Wall, V. J., Rosière, C. A., & Freitas, M. A. (2014). The Serra Pelada Au-Pd-Pt Deposit, Carajás, Brazil: Geochemistry, Mineralogy, and Zoning of Hydrothermal Alteration. Economic Geology, 109(7), 1883-1899.; Berni, G. V., Heinrich, C. A., Lobato, L. M., & Wall, V. (2016). Ore mineralogy of the Serra Pelada Au-Pd-Pt deposit, Carajás, Brazil and implications for ore-forming processes. Mineralium deposita, 51(6), 781-795.; Cabral, A.R., Lehmann, B., Kwitko, R., Cravo Costa, C.H. (2002): The Serra Pelada Au-Pd-Pt Deposit, Carajás Mineral Province, Northern Brazil: Reconnaissance Mineralogy and Chemistry of Very High Grade Palladian Gold Mineralization. Econ. Geol.: 97(5): 1127–1138
DR Congo
 
  • Lualaba
    • Kolwezi mining district
      • Kolwezi
Canadian Mineralogist 46,19-31(2008); Wilson, W. E. (2018) The Musonoi mine, Kolwezi District, Lualaba Province, Democratic Republic of the Congo. Mineralogical Record 49:236-304
Finland
 
  • Lapland
    • Enontekiö
33rd International Geological Congress (2008) session MPM-04 Platinum-group mineralogy: Pt-Pd selenides from river placers, northern Finland; Kojonen, K., McDonald, A. M., Stanley, C. J., Johanson, B., & Tranberg, J. (2014) An unusual Se-bearing moncheite and Te-bearing palladseite, Miessi River, Inari, Finland. 21 st meeting of the International Mineralogical Association. p 104
Morocco
 
  • Drâa-Tafilalet Region
    • Zagora Province
      • Bleida
El Ghorfi, M., Oberthür, T., Melcher, F., Lüders, V., El Boukhari, A., Maacha, L., Ziadi, R., and Baoutoul, H. (2006): Mineralium Deposita 41, 549-564.
 
Mineral and/or Locality  
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