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Yubdo District (Joubdo District; Youbdo District; Joubda District), Gimbi, West Welega Zone, Oromia Region, Ethiopiai
Regional Level Types
Yubdo District (Joubdo District; Youbdo District; Joubda District)District
GimbiTown
West Welega ZoneZone
Oromia RegionRegion
EthiopiaCountry

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PhotosMapsSearch
05282500017272045962362.jpg
Yubdo mine.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
00630680017272045978598.jpg
Operations on Yubdo quarry.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
04592190017272045977219.jpg
Operations on Yubdo quarry.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
05282500017272045962362.jpg
Yubdo mine.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
00630680017272045978598.jpg
Operations on Yubdo quarry.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
04592190017272045977219.jpg
Operations on Yubdo quarry.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
05282500017272045962362.jpg
Yubdo mine.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
00630680017272045978598.jpg
Operations on Yubdo quarry.

Yubdo District, Gimbi, West Welega Zone, Oromia Region, Ethiopia
Latitude & Longitude (WGS84):
8° 58' 0'' North , 35° 23' 59'' East
Latitude & Longitude (decimal):
8.96667,35.40000
GRN:
N06E25
Type:
District
Köppen climate type:
Aw : Tropical savanna, wet
Mindat Locality ID:
19852
Long-form identifier:
mindat:1:2:19852:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
ኦሮምያ?


Alaskan type PGE deposit located near Gimbi. Au/Pt Placers in soils derived from laterites.

The 9 km long and 4-5 km wide ultramafic intrusion of Yubdo strikes NNE-SSW and is crossed by the Birbir river in the eastern and southern part of the intrusion. The mafic-ultramafic rocks are underlain by Precambrian basement rocks of sedimentary origin consisting mainly of gneisses, quartzites, mica schists, amphibolites and chlorite schists. Acidic intrusive rocks include syntectonic granodiorites, hybrid granites, quartz-diorite and diorite porphyries which intrude the ultramafic rocks.

Mining 1926-41 produced 2.7 tons of platinum.

Formerly in Wallaga (Welega; Wollega; Ouallega) Province.

Note on the mineral list: Ottemann & Augusthitis (1967) also described some tiny unidentified minerals.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

47 valid minerals. 2 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Andrieslombaardite (TL)
Formula: RhSbS
Type Locality:
ⓘ Anthophyllite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘ Antigorite
Formula: Mg3(Si2O5)(OH)4
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Augite var. Ferroaugite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Bowieite
Formula: Rh2S3
ⓘ 'Calcium Amphibole Subgroup'
Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ 'Calcium Amphibole Subgroup var. Hornblende'
Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ 'Carbonate'
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Chrysotile
Formula: Mg3(Si2O5)(OH)4
ⓘ Cubanite
Formula: CuFe2S3
ⓘ Cummingtonite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘ Cuprorhodsite
Formula: (Cu1+0.5Fe3+0.5)Rh3+2S4
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Erlichmanite
Formula: OsS2
ⓘ Ferronickelplatinum
Formula: Pt2FeNi
Description: Sponge-like crystalline aggregates up to 0.8 mm with composition (Pt1.72Ir0.22)1.94Fe1.05(Ni0.91Cu0.04)1.01. Iridian variety with about 6 mas.% Ir.
ⓘ Ferrotorryweiserite
Formula: Rh5Fe10S16
ⓘ Forsterite
Formula: Mg2SiO4
ⓘ Galena
Formula: PbS
ⓘ Genkinite
Formula: Pt4Sb3
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ Hollingworthite
Formula: (Rh,Pt,Pd)AsS
ⓘ 'Hollingworthite-Irarsite Series'
Description: Inclusions of distorted octahedrons up to 10 mkm size within polyxene grains. It is interesting, that these minerals differ from usual hollingworthites from the same specimen by constant admixture of tellurium on level ~1 mas.%.
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Irarsite
Formula: (Ir,Ru,Rh,Pt)AsS
ⓘ Isoferroplatinum
Formula: Pt3Fe
ⓘ Kashinite
Formula: Ir2S3
ⓘ Kingstonite (TL)
Formula: (Rh,Ir,Pt)3S4
Type Locality:
ⓘ Laurite
Formula: RuS2
ⓘ 'Limonite'
ⓘ Lizardite
Formula: Mg3(Si2O5)(OH)4
ⓘ Magnesiochromite
Formula: MgCr2O4
ⓘ Magnesio-hornblende
Formula: ◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘ Magnesite
Formula: MgCO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Chrommagnetite
Formula: Fe2+(Fe3+,Cr3+)2O4
Description: Octahedral crystals up to 1 mm with Cr2O3 contents about 2-3 mas.%.
ⓘ Native Gold
Formula: Au
ⓘ Native Gold var. Electrum
Formula: (Au,Ag)
ⓘ Native Osmium
Formula: (Os,Ir,Ru)
ⓘ Native Platinum
Formula: Pt
ⓘ Native Platinum var. Polyxene
Formula: (Pt,Fe,Cu,Ni,Pd,Rh)
ⓘ 'Olivine Group'
Formula: M2SiO4
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ 'Prassoite'
Formula: Rh17S15
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ 'Roseite'
Formula: (Os,Ir)S
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Sperrylite
Formula: PtAs2
ⓘ Sperrylite var. Platarsite
Formula: Pt(As,S)2
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
ⓘ Stibiopalladinite
Formula: Pd5Sb2
ⓘ Stumpflite
Formula: PtSb
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Tetraferroplatinum
Formula: PtFe
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ Tulameenite
Formula: Pt2CuFe
ⓘ Tulameenite var. Antimony-bearing Tulameenite
Formula: (Pt,Sb)2CuFe
ⓘ 'UM1981-08-E:FeIrPtRhRu'
Formula: Ir-Fe-Pt-Rh-Ru-O-H ?
ⓘ 'UM1981-13-S:CoFeNiRh'
Formula: (Fe,Ni,Rh,Co)9S8
ⓘ 'UM1981-14-S:CuFeIrNiRh'
Formula: (Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
ⓘ 'UM1981-15-S:CuFeIrNiRh'
Formula: (Rh,Fe,Ni,Cu,Ir)S
ⓘ 'UM1981-16-S:CuFeIrNiRh'
Formula: (Fe,Rh,Ni,Cu,Ir)S
ⓘ 'UM1981-17-S:CuIrPtRh'
Formula: Pt(Rh,Ir)CuS4
ⓘ 'UM1981-29-Te:BiRh'
Formula: Rh(Te,Bi)2
ⓘ 'UM1992-24-S:CuFeIrNiPtRh'
Formula: (Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
ⓘ 'UM1992-31-Sb:AsPdRh'
Formula: (Pd,Rh)2(Sb,As)
ⓘ 'Unnamed (Pt-Fe Alloy)'
Formula: Pt2Fe
ⓘ Zircon
Formula: Zr(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold
var. Electrum		1.AA.05(Au,Ag)
ⓘ1.AA.05Au
ⓘNative Osmium1.AF.05(Os,Ir,Ru)
ⓘNative Platinum1.AF.10Pt
ⓘvar. Polyxene1.AF.10(Pt,Fe,Cu,Ni,Pd,Rh)
ⓘIsoferroplatinum1.AG.35Pt3Fe
ⓘFerronickelplatinum1.AG.40Pt2FeNi
ⓘTetraferroplatinum1.AG.40PtFe
ⓘTulameenite1.AG.40Pt2CuFe
ⓘvar. Antimony-bearing Tulameenite1.AG.40(Pt,Sb)2CuFe
Group 2 - Sulphides and Sulfosalts
ⓘStibiopalladinite2.AC.20aPd5Sb2
ⓘGenkinite2.AC.35aPt4Sb3
ⓘBornite2.BA.15Cu5FeS4
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCubanite2.CB.55aCuFe2S3
ⓘFerrotorryweiserite2.CC.Rh5Fe10S16
ⓘStumpflite2.CC.05PtSb
ⓘGalena2.CD.10PbS
ⓘCuprorhodsite2.DA.05(Cu1+0.5Fe3+0.5)Rh3+2S4
ⓘKingstonite (TL)2.DA.25(Rh,Ir,Pt)3S4
ⓘBowieite2.DB.15Rh2S3
ⓘKashinite2.DB.15Ir2S3
ⓘAndrieslombaardite (TL)2.EB.RhSbS
ⓘErlichmanite2.EB.05aOsS2
ⓘLaurite2.EB.05aRuS2
ⓘSperrylite
var. Platarsite		2.EB.05aPt(As,S)2
ⓘ2.EB.05aPtAs2
ⓘHollingworthite2.EB.25(Rh,Pt,Pd)AsS
ⓘIrarsite2.EB.25(Ir,Ru,Rh,Pt)AsS
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnesiochromite4.BB.05MgCr2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘvar. Chrommagnetite4.BB.05Fe2+(Fe3+,Cr3+)2O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘMagnesite5.AB.05MgCO3
Group 9 - Silicates
ⓘChrysotile9.00.Mg3(Si2O5)(OH)4
ⓘForsterite9.AC.05Mg2SiO4
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘAugite
var. Ferroaugite		9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAnthophyllite9.DD.05◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘCummingtonite9.DE.05◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘMagnesio-hornblende9.DE.10◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘAntigorite9.ED.15Mg3(Si2O5)(OH)4
ⓘLizardite9.ED.15Mg3(Si2O5)(OH)4
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Chlorite Group'-
ⓘ'Calcium Amphibole Subgroup
var. Hornblende'		-AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ'Limonite'-
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Unnamed (Pt-Fe Alloy)'-Pt2Fe
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Hollingworthite-Irarsite Series'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Prassoite'-Rh17S15
ⓘ'Olivine Group'-M2SiO4
ⓘ'Calcium Amphibole Subgroup'-AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ'UM1981-08-E:FeIrPtRhRu'-Ir-Fe-Pt-Rh-Ru-O-H ?
ⓘ'UM1981-29-Te:BiRh'-Rh(Te,Bi)2
ⓘ'UM1981-13-S:CoFeNiRh'-(Fe,Ni,Rh,Co)9S8
ⓘ'UM1981-14-S:CuFeIrNiRh'-(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
ⓘ'UM1981-15-S:CuFeIrNiRh'-(Rh,Fe,Ni,Cu,Ir)S
ⓘ'UM1981-16-S:CuFeIrNiRh'-(Fe,Rh,Ni,Cu,Ir)S
ⓘ'UM1981-17-S:CuIrPtRh'-Pt(Rh,Ir)CuS4
ⓘ'Carbonate'-
ⓘ'UM1992-24-S:CuFeIrNiPtRh'-(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
ⓘ'UM1992-31-Sb:AsPdRh'-(Pd,Rh)2(Sb,As)
ⓘ'Roseite'-(Os,Ir)S

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hⓘ AntigoriteMg3(Si2O5)(OH)4
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hⓘ GoethiteFe3+O(OH)
Hⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Hⓘ LizarditeMg3(Si2O5)(OH)4
Hⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Hⓘ UM1981-08-E:FeIrPtRhRuIr-Fe-Pt-Rh-Ru-O-H ?
BBoron
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
Cⓘ MagnesiteMgCO3
OOxygen
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oⓘ AntigoriteMg3(Si2O5)(OH)4
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oⓘ DiopsideCaMgSi2O6
Oⓘ ForsteriteMg2SiO4
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ LizarditeMg3(Si2O5)(OH)4
Oⓘ MagnesiteMgCO3
Oⓘ MagnesiochromiteMgCr2O4
Oⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ QuartzSiO2
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ ZirconZr(SiO4)
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ Olivine GroupM2SiO4
Oⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Oⓘ Magnetite var. ChrommagnetiteFe2+(Fe3+,Cr3+)2O4
Oⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ UM1981-08-E:FeIrPtRhRuIr-Fe-Pt-Rh-Ru-O-H ?
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
MgMagnesium
Mgⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgⓘ AntigoriteMg3(Si2O5)(OH)4
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
Mgⓘ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ ForsteriteMg2SiO4
Mgⓘ LizarditeMg3(Si2O5)(OH)4
Mgⓘ MagnesiteMgCO3
Mgⓘ MagnesiochromiteMgCr2O4
Mgⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Alⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Alⓘ SpessartineMn32+Al2(SiO4)3
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
SiSilicon
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siⓘ AntigoriteMg3(Si2O5)(OH)4
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siⓘ DiopsideCaMgSi2O6
Siⓘ ForsteriteMg2SiO4
Siⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Siⓘ LizarditeMg3(Si2O5)(OH)4
Siⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Siⓘ QuartzSiO2
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ ZirconZr(SiO4)
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ Olivine GroupM2SiO4
Siⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Siⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ BowieiteRh2S3
Sⓘ ChalcopyriteCuFeS2
Sⓘ CubaniteCuFe2S3
Sⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Sⓘ ErlichmaniteOsS2
Sⓘ GalenaPbS
Sⓘ Hollingworthite(Rh,Pt,Pd)AsS
Sⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Sⓘ KashiniteIr2S3
Sⓘ LauriteRuS2
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ Sperrylite var. PlatarsitePt(As,S)2
Sⓘ Hollingworthite-Irarsite Series
Sⓘ PrassoiteRh17S15
Sⓘ Kingstonite(Rh,Ir,Pt)3S4
Sⓘ UM1981-13-S:CoFeNiRh(Fe,Ni,Rh,Co)9S8
Sⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
Sⓘ UM1981-15-S:CuFeIrNiRh(Rh,Fe,Ni,Cu,Ir)S
Sⓘ UM1981-16-S:CuFeIrNiRh(Fe,Rh,Ni,Cu,Ir)S
Sⓘ UM1981-17-S:CuIrPtRhPt(Rh,Ir)CuS4
Sⓘ UM1992-24-S:CuFeIrNiPtRh(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
Sⓘ FerrotorryweiseriteRh5Fe10S16
Sⓘ AndrieslombaarditeRhSbS
Sⓘ Roseite(Os,Ir)S
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ DiopsideCaMgSi2O6
Caⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Caⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Caⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ IlmeniteFe2+TiO3
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ MagnesiochromiteMgCr2O4
Crⓘ Magnetite var. ChrommagnetiteFe2+(Fe3+,Cr3+)2O4
MnManganese
Mnⓘ SpessartineMn32+Al2(SiO4)3
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ CubaniteCuFe2S3
Feⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Feⓘ FerronickelplatinumPt2FeNi
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ IsoferroplatinumPt3Fe
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ TetraferroplatinumPtFe
Feⓘ TulameenitePt2CuFe
Feⓘ Native Platinum var. Polyxene(Pt,Fe,Cu,Ni,Pd,Rh)
Feⓘ Unnamed (Pt-Fe Alloy)Pt2Fe
Feⓘ Magnetite var. ChrommagnetiteFe2+(Fe3+,Cr3+)2O4
Feⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ UM1981-08-E:FeIrPtRhRuIr-Fe-Pt-Rh-Ru-O-H ?
Feⓘ UM1981-13-S:CoFeNiRh(Fe,Ni,Rh,Co)9S8
Feⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
Feⓘ UM1981-15-S:CuFeIrNiRh(Rh,Fe,Ni,Cu,Ir)S
Feⓘ UM1981-16-S:CuFeIrNiRh(Fe,Rh,Ni,Cu,Ir)S
Feⓘ Tulameenite var. Antimony-bearing Tulameenite(Pt,Sb)2CuFe
Feⓘ UM1992-24-S:CuFeIrNiPtRh(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
Feⓘ FerrotorryweiseriteRh5Fe10S16
CoCobalt
Coⓘ UM1981-13-S:CoFeNiRh(Fe,Ni,Rh,Co)9S8
Coⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
NiNickel
Niⓘ FerronickelplatinumPt2FeNi
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ Native Platinum var. Polyxene(Pt,Fe,Cu,Ni,Pd,Rh)
Niⓘ UM1981-13-S:CoFeNiRh(Fe,Ni,Rh,Co)9S8
Niⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
Niⓘ UM1981-15-S:CuFeIrNiRh(Rh,Fe,Ni,Cu,Ir)S
Niⓘ UM1981-16-S:CuFeIrNiRh(Fe,Rh,Ni,Cu,Ir)S
Niⓘ UM1992-24-S:CuFeIrNiPtRh(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CubaniteCuFe2S3
Cuⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Cuⓘ TulameenitePt2CuFe
Cuⓘ Native Platinum var. Polyxene(Pt,Fe,Cu,Ni,Pd,Rh)
Cuⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
Cuⓘ UM1981-15-S:CuFeIrNiRh(Rh,Fe,Ni,Cu,Ir)S
Cuⓘ UM1981-16-S:CuFeIrNiRh(Fe,Rh,Ni,Cu,Ir)S
Cuⓘ UM1981-17-S:CuIrPtRhPt(Rh,Ir)CuS4
Cuⓘ Tulameenite var. Antimony-bearing Tulameenite(Pt,Sb)2CuFe
Cuⓘ UM1992-24-S:CuFeIrNiPtRh(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
AsArsenic
Asⓘ Hollingworthite(Rh,Pt,Pd)AsS
Asⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Asⓘ Sperrylite var. PlatarsitePt(As,S)2
Asⓘ SperrylitePtAs2
Asⓘ Hollingworthite-Irarsite Series
Asⓘ UM1992-31-Sb:AsPdRh(Pd,Rh)2(Sb,As)
ZrZirconium
Zrⓘ ZirconZr(SiO4)
RuRuthenium
Ruⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ruⓘ LauriteRuS2
Ruⓘ Native Osmium(Os,Ir,Ru)
Ruⓘ Hollingworthite-Irarsite Series
Ruⓘ UM1981-08-E:FeIrPtRhRuIr-Fe-Pt-Rh-Ru-O-H ?
RhRhodium
Rhⓘ BowieiteRh2S3
Rhⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Rhⓘ Hollingworthite(Rh,Pt,Pd)AsS
Rhⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Rhⓘ Native Platinum var. Polyxene(Pt,Fe,Cu,Ni,Pd,Rh)
Rhⓘ Hollingworthite-Irarsite Series
Rhⓘ PrassoiteRh17S15
Rhⓘ Kingstonite(Rh,Ir,Pt)3S4
Rhⓘ UM1981-08-E:FeIrPtRhRuIr-Fe-Pt-Rh-Ru-O-H ?
Rhⓘ UM1981-29-Te:BiRhRh(Te,Bi)2
Rhⓘ UM1981-13-S:CoFeNiRh(Fe,Ni,Rh,Co)9S8
Rhⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
Rhⓘ UM1981-15-S:CuFeIrNiRh(Rh,Fe,Ni,Cu,Ir)S
Rhⓘ UM1981-16-S:CuFeIrNiRh(Fe,Rh,Ni,Cu,Ir)S
Rhⓘ UM1981-17-S:CuIrPtRhPt(Rh,Ir)CuS4
Rhⓘ UM1992-24-S:CuFeIrNiPtRh(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
Rhⓘ UM1992-31-Sb:AsPdRh(Pd,Rh)2(Sb,As)
Rhⓘ FerrotorryweiseriteRh5Fe10S16
Rhⓘ AndrieslombaarditeRhSbS
PdPalladium
Pdⓘ Hollingworthite(Rh,Pt,Pd)AsS
Pdⓘ StibiopalladinitePd5Sb2
Pdⓘ Native Platinum var. Polyxene(Pt,Fe,Cu,Ni,Pd,Rh)
Pdⓘ Hollingworthite-Irarsite Series
Pdⓘ UM1992-31-Sb:AsPdRh(Pd,Rh)2(Sb,As)
AgSilver
Agⓘ Native Gold var. Electrum(Au,Ag)
SbAntimony
Sbⓘ GenkinitePt4Sb3
Sbⓘ StibiopalladinitePd5Sb2
Sbⓘ StumpflitePtSb
Sbⓘ Tulameenite var. Antimony-bearing Tulameenite(Pt,Sb)2CuFe
Sbⓘ UM1992-31-Sb:AsPdRh(Pd,Rh)2(Sb,As)
Sbⓘ AndrieslombaarditeRhSbS
TeTellurium
Teⓘ UM1981-29-Te:BiRhRh(Te,Bi)2
OsOsmium
Osⓘ ErlichmaniteOsS2
Osⓘ Native Osmium(Os,Ir,Ru)
Osⓘ Roseite(Os,Ir)S
IrIridium
Irⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Irⓘ KashiniteIr2S3
Irⓘ Native Osmium(Os,Ir,Ru)
Irⓘ Hollingworthite-Irarsite Series
Irⓘ Kingstonite(Rh,Ir,Pt)3S4
Irⓘ UM1981-08-E:FeIrPtRhRuIr-Fe-Pt-Rh-Ru-O-H ?
Irⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
Irⓘ UM1981-15-S:CuFeIrNiRh(Rh,Fe,Ni,Cu,Ir)S
Irⓘ UM1981-16-S:CuFeIrNiRh(Fe,Rh,Ni,Cu,Ir)S
Irⓘ UM1981-17-S:CuIrPtRhPt(Rh,Ir)CuS4
Irⓘ UM1992-24-S:CuFeIrNiPtRh(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
Irⓘ Roseite(Os,Ir)S
PtPlatinum
Ptⓘ FerronickelplatinumPt2FeNi
Ptⓘ GenkinitePt4Sb3
Ptⓘ Hollingworthite(Rh,Pt,Pd)AsS
Ptⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ptⓘ IsoferroplatinumPt3Fe
Ptⓘ Sperrylite var. PlatarsitePt(As,S)2
Ptⓘ Native PlatinumPt
Ptⓘ SperrylitePtAs2
Ptⓘ StumpflitePtSb
Ptⓘ TetraferroplatinumPtFe
Ptⓘ TulameenitePt2CuFe
Ptⓘ Native Platinum var. Polyxene(Pt,Fe,Cu,Ni,Pd,Rh)
Ptⓘ Unnamed (Pt-Fe Alloy)Pt2Fe
Ptⓘ Hollingworthite-Irarsite Series
Ptⓘ Kingstonite(Rh,Ir,Pt)3S4
Ptⓘ UM1981-08-E:FeIrPtRhRuIr-Fe-Pt-Rh-Ru-O-H ?
Ptⓘ UM1981-14-S:CuFeIrNiRh(Fe,Ni,Ir,Rh,Cu,Pt,Co)1.06S0.94
Ptⓘ UM1981-17-S:CuIrPtRhPt(Rh,Ir)CuS4
Ptⓘ Tulameenite var. Antimony-bearing Tulameenite(Pt,Sb)2CuFe
Ptⓘ UM1992-24-S:CuFeIrNiPtRh(Rh,Pt,Ir)3(Fe,Ni,Cu)3S8
AuGold
Auⓘ Native Gold var. Electrum(Au,Ag)
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS
BiBismuth
Biⓘ UM1981-29-Te:BiRhRh(Te,Bi)2

Localities in this Region

Ethiopia
  • Oromia Region

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate

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References

Kebede H. Belete, Aberra Mogessie and , John F.W. Bowles Platinum-Group Minerals in the Alaskan Type Mafic-Ultramafic Intrusions of the Yubdo Area, Western Ethiopia. 9th Platinum symposium
Augusthitis, S.S. (1965) Mineralogical and geochemical studies of the platiniferous dunite-birbirite-pyroxenite complex of Yubdo, Birbir, W. Ethiopia. Chem. Erde: 24: 159-165.
Ottemann, J., Augustithis, S.S. (1967) Geochemistry and origin of "platinum-nuggets" in lateritic covers from ultrabasic rocks and birbirites of W. Ethiopia. Mineralium Deposita, 1 (4). 269-277 doi:10.1007/bf00205201
Evstigneyeva, T.L., Kudryavtsev, A.S., Rudashevskiy, N.S. (1992) Minerals of the platinum-group elements from Yubdo (Ethiopia): New data. Mineral. Zhurnal, l4(1), 29-41 (in Russian)
[1]Mogessie, A. (2003) Platinum Group Minerals from the Yubdo Mafic-Ultramafic Rocks, Western Ethiopia. MITI.ÖSTERR.MINER.GES., 148. 235-237
www.goldenprospectplc.com (n.d.) http://www.goldenprospectplc.com/financials/accounts2000/exploration_review.asp
Stanley, C. J., Criddle, A. J., Spratt, J., Roberts, A. C., Szymański, J. T., Welch, M. D. (2005) Kingstonite, (Rh,Ir,Pt)3S4, a new mineral species from Yubdo, Ethiopia. Mineralogical Magazine, 69 (4) 447-453 doi:10.1180/0026461056940262
Mogessie et al. (2009): Mitt. Österr. Mineral. Ges. 155, 108. (Abs.)
Cabri, Louis J.; Oberthür, Thomas; Keays, Reid R. (2022) Origin and depositional history of platinum-group minerals in placers – A critical review of facts and fiction. Ore Geology Reviews, 144. 104733 doi:10.1016/j.oregeorev.2022.104733
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