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Ungavaite

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District of Ungava, 1898
Formula:
Pd4Sb3
Colour:
Dark gray
Lustre:
Metallic
Specific Gravity:
7.264 (Calculated)
Crystal System:
Tetragonal
Name:
To recall the region in which it was discovered, Ugava region, in what is now northern Québec, Canada. The administrative region was an entity from 1895 to 1920, though it effectively ceased operation in 1912.
An intermetallic mineral.

The Pd-dominant analogue of genkinite. Possibly the Sb analogue of 'UM1984-07-As:Pd'. Also compare 'UM1978-21-Sb:Pd'.


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Classification of UngavaiteHide

Approved
Approval Year:
2004
First Published:
2005
2.AC.35b

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 UngavaiteHide

Metallic
Transparency:
Opaque
Colour:
Dark gray
Tenacity:
Malleable
Cleavage:
None Observed
Fracture:
None observed
Density:
7.264 g/cm3 (Calculated)

Chemical Properties of UngavaiteHide

Formula:
Pd4Sb3

Crystallography of UngavaiteHide

Crystal System:
Tetragonal
Class (H-M):
4 2 2 - Trapezohedral
Space Group:
P41 21 2
Cell Parameters:
a = 7.7388 Å, c = 24.145 Å
Ratio:
a:c = 1 : 3.12
Unit Cell V:
1446.02 ų
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.0077(90)
2.2633(100)
2.1471(30)
1.9404(60)
1.2465(30)
1.2002(30)
0.9221(30)
Comments:
From type description.

Type Occurrence of UngavaiteHide

Place of Conservation of Type Material:
Holotype Natural History Museum, Cromwell Road, London, SW7 5BD, UK (polished section #BM 2004, 34), and the Canadian Museum of Nature, Ottawa (polished section; #CNMMN 84397).
Geological Setting of Type Material:
In a narrow (Pd+Sb)-rich zone separating massive and disseminated sulfides.
Associated Minerals at Type Locality:
Reference:
McDonald, A.M., Cabri, L.J., Stanley, C.J., Rudashevsky, N.S., Poirier, G., Mungall, J.E., Ross, K.C., Durham, B.R., Rudashevsky, V.N. (2005) Ungavaite, Pd4Sb3, a new intermetallic mineral species from the Mesamax Northwest deposit, Ungava region, Québec, Canada: Description and genetic implications. CAnadian Mineralogist: 43: 1735-1744.

Synonyms of UngavaiteHide

Other Language Names for UngavaiteHide

German:Ungavait
Simplified Chinese:四方锑钯矿
Traditional Chinese:四方銻鈀礦

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.25dNaldrettitePd2SbOrth. mm2 : Cmc21
2.AC.30UM1999-02-As:NiRh(Rh,Ni)7As4
2.AC.30PolkanoviteRh12As7Hex.
2.AC.35aGenkinite(Pt,Pd,Rh)4Sb3Tet. 4 2 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 UngavaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
McDonald, A.M., Cabri, L.J., Stanley, C.J., Rudashevsky, N.S., Poirier, G., Mungall, J.E., Ross, K.C., Durham, B.R., Rudashevsky, V.N. (2005) Ungavaite, Pd4Sb3, a new intermetallic mineral species from the Mesamax Northwest deposit, Ungava region, Québec, Canada: Description and genetic implications. CAnadian Mineralogist: 43: 1735-1744.

Internet Links for UngavaiteHide

Localities for UngavaiteHide

ⓘ - 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.
Canada (TL)
 
  • Québec
    • Nord-du-Québec
      • Nunavik
        • Ungava
McDonald et al (2005), Canadian Mineralogist: 43: 1735-1744.
USA
 
  • Pennsylvania
    • Chester Co.
      • State Line Chromite District
Smith and Barnes (2011) Pennsylvania Geology v. 41, no. 3/4.
    • York Co.
      • Frogtown
Smith and Barnes (2011) Table 4.
Mineral and/or Locality  
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