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Naldrettite

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About NaldrettiteHide

Anthony J. Naldrett
Formula:
Pd2Sb
Lustre:
Metallic
Hardness:
4 - 5
Crystal System:
Orthorhombic
Name:
Named in honor of Anthony James Naldrett (b. 1933, England), University of Toronto, who made significant contributions to the understanding of the genesis of platinum-group element deposits. He served as President of both the Mineralogical Association of Canada and the International Mineralogical Association.

Classification of NaldrettiteHide

Approved
Approval Year:
2004
First Published:
2005
2.AC.25d

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 NaldrettiteHide

Metallic
Transparency:
Opaque
Hardness:
4 - 5 on Mohs scale
Hardness:
VHN50=358 - 418 kg/mm2 - Vickers
Tenacity:
Elastic
Fracture:
Irregular/Uneven

Optical Data of NaldrettiteHide

Type:
Anisotropic
Anisotropism:
Deep bright blue, lemon-buff, mauve to pale pink
Bireflectance:
Weak
Colour in reflected light:
Bright creamy white
Pleochroism:
Non-pleochroic

Chemical Properties of NaldrettiteHide

Formula:
Pd2Sb

Crystallography of NaldrettiteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Cmc21
Cell Parameters:
a = 3.3906 Å, b = 17.5551 Å, c = 6.957 Å
Ratio:
a:b:c = 0.193 : 1 : 0.396
Unit Cell V:
414.10 ų (Calculated from Unit Cell)
Morphology:
Anhedral grains

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.407(34)
2.303(35)
2.245(100)
2.057(52)
2.001(40)
1.367(35)
1.284(42)
1.212(50)

Type Occurrence of NaldrettiteHide

Reference:
Cabri, L.J., McDonald, A.M., Stanley, C.J., Rudashevsky, N.S., Poirier, G., Durham, B.R., Mungall, J.E. and Rudashevsky, V.N. (2005) Naldrettite, Pd2Sb, a new intermetallic mineral from the Mesamax Northwest deposit, Ungava region, Quebec, Canada. Mineralogical Magazine: 69: 89-97.

Synonyms of NaldrettiteHide

Other Language Names for NaldrettiteHide

Simplified Chinese:一锑二钯矿

Common AssociatesHide

Associated Minerals Based on Photo Data:
Chalcopyrite1 photo of Naldrettite associated with Chalcopyrite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.AC.05aAtheneitePd2As0.75Hg0.25Hex. 6 m2 : P62m
2.AC.05bVincentitePd3AsTet.
2.AC.10cArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
2.AC.10bMertieite-IIPd8Sb2.5As0.5Trig. 3m (3 2/m) : R3c
2.AC.10aStillwateritePd8As3Trig.
2.AC.15aIsomertieitePd11Sb2As2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.15bMertieite-IPd11(Sb,As)4Hex.
2.AC.15aMiessiitePd11Te2Se2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.20bPalarstanidePd5(Sn,As)2Hex.
2.AC.20aStibiopalladinitePd5Sb2Hex.
2.AC.20cMenshikovitePd3Ni2As3Hex. 6/m : P63/m
2.AC.25eMajakitePdNiAsHex.
2.AC.25aPalladoarsenidePd2AsMon. 2/m : P2/m
2.AC.25fPalladobismutharsenidePd2(As,Bi)Orth.
2.AC.25cPalladodymite(Pd,Rh)2AsOrth.
2.AC.25bRhodarsenide(Rh,Pd)2AsOrth.
2.AC.30UM1999-02-As:NiRh(Rh,Ni)7As4
2.AC.30PolkanoviteRh12As7Hex.
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
2.AC.45bIridarsenite(Ir,Ru)As2Mon.

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 NaldrettiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bälz, U. and Schubert, K. (1969) Kristallstruktur von Pd2As(r) und Pd2Sb. Journal of Less-Common Metals: 19: 300-304.
Cabri, L.J., McDonald, A.M., Stanley, C.J., Rudashevsky, N.S., Poirier, G., Durham, B.R., Mungall, J.E. and Rudashevsky, V.N. (2005) Naldrettite, Pd2Sb, a new intermetallic mineral from the Mesamax Northwest deposit, Ungava region, Quebec, Canada. Mineralogical Magazine: 69: 89-97.

Internet Links for NaldrettiteHide

Localities for NaldrettiteHide

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
 
  • New South Wales
    • Kennedy Co.
      • Fifield
Johan, Z., Ohnenstetter, M., Slansky, E., Barron, L.M., Suppel, D. (1989) Platinum mineralization in the Alaskan-type intrusive complexes near Fifield, New South Wales, Australia. part 1. platinum-group minerals in clinopyroxenites of the Kelvin Grove prospect, Owendale intrusion. Mineralogy and Petrology, 40:4, 289-309. Jambor, J.L., Vanko, D.A. (1991) New Mineral Names. American Mineralogist, Volume 76, pages 1414-1440 at p.1438.
Canada
 
  • Ontario
    • Sudbury District
      • Denison Township
Robert C. Smith, II Ph.D. P.G.
    • 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.
  • Québec
    • Nord-du-Québec
      • Nunavik
        • Ungava
Am Min 90:1466-1467; McDonald et al (2005), Canadian Mineralogist: 43: 1735-1744
China
 
  • Sichuan
    • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
      • Danba Co.
        • Yangliuping Cu-Ni-PGE ore field
Xiaoqiang Hu, Yunquan Li, and Dequan Shuai (2001): Journal of Mineralogy and Petrology 21(1), 14-18; Xiaoqiang Hu, Yunquan Li, and Dequan Shuai (2001): Journal of Chengdu University of Technology 28(1), 48-52
Greece
 
  • Central Macedonia
    • Chalkidiki
      • Aristotelis
        • Cassandra Mines
Katie A. McFall, Jonathan Naden, Stephen Roberts, Tim Baker, John Spratt, Iain McDonald (2018): Platinum-group minerals in the Skouries Cu-Au (Pd, Pt, Te) porphyry deposit. Ore Geology Reviews 99, 344-364.
  • Epirus
    • Pindos Mtn
      • Pindos ophiolite complex
Argyrios Kapsiotis, Tassos A. Grammatikopoulos, Basilios Tsikouras and Konstantinos Hatzipanagiotou (2010): Platinum-Group Mineral Characterization in Concentrates from High-Grade PGE Al-rich Chromitites of Korydallos Area in the Pindos Ophiolite Complex (NW Greece). Resource Geology 60, 178-191.
North Macedonia
 
  • Lipkovo
Đorđević, T., Kolitsch, U., Tasev, G., Serafimovski, T. & Boev, B. (2017): Anomalous As-enrichment in gersdorffite in a realgar-rich environment: Lojane, Macedonia. Mitt. Österr. Mineral. Ges. 163, 38 (abs.).
Russia
 
  • Irkutsk Oblast
    • Uda–Biryusa district
Shvedov, G. I., & Barkov, A. Y. (2017). Primary and alteration assemblages of platinum-group minerals from the Ognit complex, Irkutskaya oblast, Eastern Sayans, Russia. Neues Jahrbuch für Mineralogie-Abhandlungen: Journal of Mineralogy and Geochemistry, 194(1), 35-48.
  • Zabaykalsky Krai
    • Buriatia Republic (Buryatia)
      • Dovyren Highlands
Ariskin, A. A., Kislov, E. V., Danyushevsky, L. V., Nikolaev, G. S., Fiorentini, M. L., Gilbert, S., ... & Malyshev, A. (2016). Cu–Ni–PGE fertility of the Yoko-Dovyren layered massif (northern Transbaikalia, Russia): thermodynamic modeling of sulfide compositions in low mineralized dunite based on quantitative sulfide mineralogy. Mineralium Deposita, 51(8), 993-1011.
UK
 
  • Scotland
    • Highland
https://www.sciencedirect.com/science/article/pii/S0169136816303559
USA
 
  • Pennsylvania
    • Chester Co.
      • State Line Chromite District
Smith and Barnes (2011) Pennsylvania Geology v. 41, no. 3/4.
Mineral and/or Locality  
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