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Unki Mine, Shurugwi District (Selukwe District), Midlands, Zimbabwei
Regional Level Types
Unki MineMine
Shurugwi District (Selukwe District)District
MidlandsProvince
ZimbabweCountry

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Latitude & Longitude (WGS84): 19° 37' 21'' South , 30° 5' 42'' East
Latitude & Longitude (decimal): -19.62258,30.09501
GeoHash:G#: kst2kgfd0
Owned/operated by:Anglo American plc
Locality type:Mine
Köppen climate type:Cwa : Monsoon-influenced humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Shurugwi17,075 (2012)10.7km
Lalapanzi1,390 (2012)33.4km
Gweru146,073 (2018)34.9km


A PGE mine in the Selukwe sub-chamber of the Great Dyke, an elongate layered mafic-ultramafic intrusion (550 km long, up to 11 km wide) into Archean granites and greenstones of the Zimbabwe craton.

Regions containing this locality

African PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


19 valid minerals.

Detailed Mineral List:

Braggite
Formula: (Pt,Pd,Ni)S
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Chalcopyrite
Formula: CuFeS2
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Chromite
Formula: Fe2+Cr3+2O4
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Cooperite
Formula: PtS
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Gold
Formula: Au
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Hematite
Formula: Fe2O3
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Hollingworthite
Formula: (Rh,Pt,Pd)AsS
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Ilmenite
Formula: Fe2+TiO3
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Kotulskite
Formula: Pd(Te,Bi)
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Laurite
Formula: RuS2
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Maslovite
Formula: PtBiTe
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Michenerite
Formula: PdBiTe
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Moncheite
Formula: (Pt,Pd)(Te,Bi)2
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Polarite
Formula: Pd(Bi,Pb)
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342
Pyrrhotite
Formula: Fe7S8
Reference: Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Sperrylite
Formula: PtAs2
Reference: Allan H. Wilson and Martin D. Prendergast (2001) Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure. South African Journal of Geology, 104:319-342; Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Braggite2.CC.35a(Pt,Pd,Ni)S
Chalcopyrite2.CB.10aCuFeS2
Cooperite2.CC.35bPtS
Hollingworthite2.EB.25(Rh,Pt,Pd)AsS
Kotulskite2.CC.05Pd(Te,Bi)
Laurite2.EB.05aRuS2
Maslovite2.EB.25PtBiTe
Michenerite2.EB.25PdBiTe
Moncheite2.EA.20(Pt,Pd)(Te,Bi)2
Pentlandite2.BB.15(FexNiy)Σ9S8
Polarite2.AC.40Pd(Bi,Pb)
Pyrrhotite2.CC.10Fe7S8
Sperrylite2.EB.05aPtAs2
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
Chrysotile9.ED.15Mg3(Si2O5)(OH)4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Braggite2.8.5.3(Pt,Pd,Ni)S
Cooperite2.8.5.1PtS
Polarite2.8.6.1Pd(Bi,Pb)
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Hollingworthite2.12.3.8(Rh,Pt,Pd)AsS
Laurite2.12.1.10RuS2
Maslovite2.12.3.12PtBiTe
Michenerite2.12.3.11PdBiTe
Moncheite2.12.14.3(Pt,Pd)(Te,Bi)2
Sperrylite2.12.1.13PtAs2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Chrysotile71.1.5.1Mg3(Si2O5)(OH)4
Unclassified Minerals, Mixtures, etc.
Kotulskite-Pd(Te,Bi)

List of minerals for each chemical element

HHydrogen
H ChrysotileMg3(Si2O5)(OH)4
OOxygen
O ChrysotileMg3(Si2O5)(OH)4
O IlmeniteFe2+TiO3
O HematiteFe2O3
O ChromiteFe2+Cr23+O4
O MagnetiteFe2+Fe23+O4
MgMagnesium
Mg ChrysotileMg3(Si2O5)(OH)4
SiSilicon
Si ChrysotileMg3(Si2O5)(OH)4
SSulfur
S PyrrhotiteFe7S8
S Pentlandite(FexNiy)Σ9S8
S ChalcopyriteCuFeS2
S CooperitePtS
S Braggite(Pt,Pd,Ni)S
S LauriteRuS2
S Hollingworthite(Rh,Pt,Pd)AsS
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe PyrrhotiteFe7S8
Fe Pentlandite(FexNiy)Σ9S8
Fe ChalcopyriteCuFeS2
Fe IlmeniteFe2+TiO3
Fe HematiteFe2O3
Fe ChromiteFe2+Cr23+O4
Fe MagnetiteFe2+Fe23+O4
NiNickel
Ni Pentlandite(FexNiy)Σ9S8
CuCopper
Cu ChalcopyriteCuFeS2
AsArsenic
As SperrylitePtAs2
As Hollingworthite(Rh,Pt,Pd)AsS
RuRuthenium
Ru LauriteRuS2
RhRhodium
Rh Hollingworthite(Rh,Pt,Pd)AsS
PdPalladium
Pd Moncheite(Pt,Pd)(Te,Bi)2
Pd MicheneritePdBiTe
Pd KotulskitePd(Te,Bi)
Pd PolaritePd(Bi,Pb)
TeTellurium
Te Moncheite(Pt,Pd)(Te,Bi)2
Te MaslovitePtBiTe
Te MicheneritePdBiTe
Te KotulskitePd(Te,Bi)
PtPlatinum
Pt Moncheite(Pt,Pd)(Te,Bi)2
Pt MaslovitePtBiTe
Pt SperrylitePtAs2
Pt CooperitePtS
Pt Braggite(Pt,Pd,Ni)S
AuGold
Au GoldAu
PbLead
Pb PolaritePd(Bi,Pb)
BiBismuth
Bi Moncheite(Pt,Pd)(Te,Bi)2
Bi MaslovitePtBiTe
Bi MicheneritePdBiTe
Bi KotulskitePd(Te,Bi)
Bi PolaritePd(Bi,Pb)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Rhyacian
2050 - 2300 Ma



ID: 3311214

Age: Rhyacian (2050 - 2300 Ma)

Lithology: Plutonic and metamorphic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Siderian
2300 - 2500 Ma



ID: 3185585
Paleoproterozoic intrusive rocks

Age: Siderian (2300 - 2500 Ma)

Comments: Great Dyke

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Murahwi, C. Z. (1996). The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe (Doctoral dissertation, Rhodes University).
Stribrny, B., Wellmer, F.-W., Burgath, K.-P., Oberthür, T., Tarkian, M., and Pfeiffer, T. (2000): Unconventional PGE occurrences and PGE mineralization in the Great Dyke: metallogenic and economic aspects. Mineralium Deposita 35, 260-281.
Ncube, S. (2014) The origin and petrogenesis of the ultramafic enclaves at Unki mine, Selukwe Subchamber, Great Dyke, Zimbabwe (Master thesis, University of Witwatersrand).


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