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Ungavaite

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Formula:
Pd
 
4
Sb
 
3
System:Tetragonal
Name:To recall the region in which it was discovered, Ugava region, northern Québec, Canada.


An intermetallic mineral.

Pd-dominant analogue of genkinite.

Classification of Ungavaite

IMA status:Approved 2004
Nickel-Strunz 10th (pending) edition ID: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
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Type Occurrence of Ungavaite

Type Locality:Mesamax Northwest deposit, Ungava, Nunavik, Nord-du-Québec, Québec, Canada
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:
SudburyiteSphaleriteSperrylitePyrrhotitePetzite
PentlanditeNaldrettiteMicheneriteMagnetiteHessite
GalenaElectrumCobaltiteChlorite GroupChalcopyrite
Altaite

Physical Properties of Ungavaite

Density (calculated):7.264 g/cm3

Crystallography of Ungavaite

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

Chemical Properties of Ungavaite

Formula:
Pd
 
4
Sb
 
3
All elements listed in formula:Pd, Sb

Relationship of Ungavaite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.AC.05aAtheneite
Pd
 
2
As
 
0.75
Hg
 
0.25
2.AC.05bVincentite
Pd
 
3
As
2.AC.10cArsenopalladinite
Pd
 
8
(As,Sb)
 
3
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.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

Other Names for Ungavaite

Synonyms:
IMA2004-020
Other Languages:
German:Ungavait

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 Ungavaite

Reference List:

- +
McDonald, A.M., Cabri, L.J., Stanley, C.J., Rudashevsky, N.S., Poirier, G., Mungall, J.E., Ross, K.C., Durham, B.R., and 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 Ungavaite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Ungavaite

    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.
    Canada
     
    • Québec
      • Nord-du-Québec
        • Nunavik
          • Ungava
    		McDonald et al (2005), Canadian Mineralogist: 43: 1735-1744.
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