To recall the region in which it was discovered, Ungava 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.

Type Locality:

ⓘ Mesamax Northwest deposit, Ungava Peninsula, Nunavik, Nord-du-Québec, Québec, Canada

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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Unique IdentifiersHide

Mindat ID:

27471

Long-form identifier:

mindat:1:1:27471:7

GUID
(UUID V4):

0e5cc5a6-d522-4dc0-922d-e520286bad13

IMA Classification of UngavaiteHide

IMA status:

Approved

Approval year:

2004

First published:

2005

Type description 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. The Canadian Mineralogist, 43 (5) 1735-1744 doi:10.2113/gscanmin.43.5.1735

Classification of UngavaiteHide

Strunz-mindat (2024):

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Ugv	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of UngavaiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Dark gray

Tenacity:

Malleable

Cleavage:

None Observed

Fracture:

None observed

Density:

7.264 g/cm³ (Calculated)

Optical Data of UngavaiteHide

Anisotropism:

Distinct

Bireflectance:

Weak
50.2 to 60.7

Reflectivity:

Wavelength	R₁	R₂
470nm	50.2%	50.5%
546nm	55.6%	55.9%
589nm	57.9%	58.3%
650nm	60.2%	60.7%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 60.7%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

Bright creamy white

Internal Reflections:

None exhibited

Pleochroism:

Non-pleochroic

Chemistry of UngavaiteHide

Mindat Formula:

Pd₄Sb₃

Elements listed:

Pd, Sb - search for minerals with similar chemistry

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 Å³

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.0077 Å	(90)
2.2633 Å	(100)
2.1471 Å	(30)
1.9404 Å	(60)
1.2465 Å	(30)
1.2002 Å	(30)
0.9221 Å	(30)

Comments:

From type description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Stage 4b: Highly evolved igneous rocks	>3.0
36 : Carbonatites, kimberlites, and related igneous rocks
37 : Layered igneous intrusions and related PGE minerals

Type Occurrence of UngavaiteHide

Type Locality:

ⓘ Mesamax Northwest deposit, Ungava Peninsula, 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:

Sudburyite	Sphalerite	Sperrylite	Pyrrhotite	Petzite
Pentlandite	Naldrettite	Michenerite	Magnetite	Hessite
Galena	Electrum	Cobaltite	Chlorite Group	Chalcopyrite
Altaite

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.

Download:

http://rruff.info/rruff_1.0/uploads/CM43_1735.pdf

Synonyms of UngavaiteHide

IMA2004-020

Other Language Names for UngavaiteHide

German:Ungavait

Simplified Chinese:四方锑钯矿

Traditional Chinese:四方銻鈀礦

Related Minerals - Strunz-mindat Grouping Hide

2.AC.	Törnroosite	Pd₁₁As₂Te₂	Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.	Vadlazarenkovite	Pd₈Bi_1.5Te_1.25As_0.25	Trig. 3m (3 2/m) : R3c
2.AC.05a	Atheneite	Pd₂As_0.75Hg_0.25	Hex. 6 m2 : P6₂m
2.AC.05b	Vincentite	Pd₃As	Mon.
2.AC.10c	Arsenopalladinite	Pd₈(As,Sb)₃	Tric. 1 : P1
2.AC.10b	Mertieite	Pd₈Sb_2.5As_0.5	Trig. 3m (3 2/m) : R3c
2.AC.10a	Stillwaterite	Pd₈As₃	Trig.
2.AC.15a	Isomertieite	Pd₁₁Sb₂As₂	Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.15b	Pseudomertieite	Pd₁₁(Sb,As)₄	Hex.
2.AC.15a	Miessiite	Pd₁₁Te₂Se₂	Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.20b	Palarstanide	Pd₅(Sn,As)₂	Hex.
2.AC.20a	Stibiopalladinite	Pd₅Sb₂	Hex.
2.AC.20c	Menshikovite	Pd₃Ni₂As₃	Hex. 6/m : P6₃/m
2.AC.25e	Majakite	PdNiAs	Hex.
2.AC.25a	Palladoarsenide	Pd₂As	Mon. 2/m : P2/m
2.AC.25f	Palladobismutharsenide	Pd₂(As,Bi)	Orth.
2.AC.25c	Palladodymite	(Pd,Rh)₂As	Orth. mmm (2/m 2/m 2/m) : Pnma
2.AC.25b	Rhodarsenide	(Rh,Pd)₂As	Orth.
2.AC.25d	Naldrettite	Pd₂Sb	Orth. mm2 : Cmc2₁
2.AC.30	UM1999-02-As:NiRh	(Rh,Ni)₇As₄
2.AC.30	Polkanovite	Rh₁₂As₇	Hex. 6/m : P6₃/m
2.AC.35a	Genkinite	Pt₄Sb₃	Tet. 4 2 2
2.AC.40	Polarite	Pd(Bi,Pb)	Orth. mm2 : Cmc2₁
2.AC.45a	Froodite	α-PdBi₂	Mon. 2/m : B2/m
2.AC.50	Nipalarsite	Ni₈Pd₃As₄	Iso. m3m (4/m 3 2/m)
2.AC.50	Viteite	Pd₅InAs	Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm

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.

Internet Links for UngavaiteHide

mindat.org URL:

https://www.mindat.org/min-27471.html
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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for UngavaiteHide

Reference List:

(2023) Ungavaite. Handbook of Mineralogy. Mineralogical Society of America

Localities for UngavaiteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Canada
Ontario Greater Sudbury Drury Township Worthington area Worthington Offset Dike ⓘ Totten No. 2 Mine	Warren (2013)
Québec Nord-du-Québec Nunavik Ungava Peninsula ⓘ Mequillon deposit	Liu et al. (2016)
ⓘ Mesamax Northwest deposit (TL)	McDonald et al. (2005)
ⓘ Tootoo deposit	Liu et al. (2016)

South Africa
Limpopo Waterberg District Municipality Mogalakwena Local Municipality Mogalakwena ⓘ Mokopane	Hutchinson et al. (2005)
ⓘ Turfspruit farm	Hutchinson et al. (2005)

USA
Pennsylvania Chester County ⓘ West Nottingham Township	Smith and Barnes (2011)
York County Frogtown ⓘ Reeser's Summit	Smith and Barnes (2011)

Ungavaite