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Lega Dembi Mine, Megado, Oromia Region, Ethiopiai
Regional Level Types
Lega Dembi MineMine
Megado- not defined -
Oromia RegionRegion
EthiopiaCountry

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Latitude & Longitude (WGS84):
5° 27' 29'' North , 38° 53' 20'' East
Latitude & Longitude (decimal):
5.45833,38.88889
GRN:
N04E27
Type:
Mine
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Shakiso34,078 (2017)34.2km
Kibre Mengist27,854 (2012)48.4km
Mindat Locality ID:
21854
Long-form identifier:
mindat:1:2:21854:1
GUID (UUID V4):
0


Shear zone-hosted quartz vein-type gold deposit, worked from four interconnected open pits.
Located NE of Megado.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


47 valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Altaite ?
Formula: PbTe
ⓘ Argentopentlandite
Formula: Ag(Fe,Ni)8S8
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Aurostibite
Formula: AuSb2
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Boulangerite
Formula: Pb5Sb4S11
ⓘ Bournonite
Formula: PbCuSbS3
ⓘ Breithauptite
Formula: NiSb
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Cubanite
Formula: CuFe2S3
ⓘ Dufrénoysite
Formula: Pb2As2S5
ⓘ Dyscrasite
Formula: Ag3Sb
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Galena
Formula: PbS
ⓘ Gersdorffite
Formula: NiAsS
ⓘ Graphite
Formula: C
ⓘ Greigite ?
Formula: Fe2+Fe3+2S4
ⓘ Hessite
Formula: Ag2Te
ⓘ Jordanite
Formula: Pb14As6S23
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ Laitakarite
Formula: Bi4(Se,S)3
ⓘ Mackinawite
Formula: FeS
ⓘ Marcasite
Formula: FeS2
ⓘ Meneghinite
Formula: Pb13CuSb7S24
ⓘ Molybdenite
Formula: MoS2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Fuchsite
Formula: K(Al,Cr)3Si3O10(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Antimony
Formula: Sb
ⓘ Native Bismuth
Formula: Bi
ⓘ Native Gold
Formula: Au
ⓘ Native Gold var. Electrum
Formula: (Au,Ag)
ⓘ Native Silver
Formula: Ag
ⓘ Nickeline
Formula: NiAs
ⓘ Nisbite
Formula: NiSb2
ⓘ Orpiment
Formula: As2S3
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ Petzite
Formula: Ag3AuTe2
ⓘ Pilsenite
Formula: Bi4Te3
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ Stützite
Formula: Ag5-xTe3, x = 0.24-0.36
ⓘ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ Troilite
Formula: FeS
ⓘ Tsumoite
Formula: BiTe
ⓘ Ullmannite
Formula: NiSbS
ⓘ Violarite
Formula: Fe2+Ni3+2S4

Gallery:

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 Silver1.AA.05Ag
ⓘNative Antimony1.CA.05Sb
ⓘNative Bismuth1.CA.05Bi
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘDyscrasite2.AA.35Ag3Sb
ⓘHessite2.BA.60Ag2Te
ⓘStützite2.BA.65Ag5-xTe3, x = 0.24-0.36
ⓘPetzite2.BA.75Ag3AuTe2
ⓘArgentopentlandite2.BB.15Ag(Fe,Ni)8S8
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCubanite2.CB.55aCuFe2S3
ⓘBreithauptite2.CC.05NiSb
ⓘNickeline2.CC.05NiAs
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘTroilite2.CC.10FeS
ⓘMackinawite2.CC.25FeS
ⓘAltaite ?2.CD.10PbTe
ⓘGalena2.CD.10PbS
ⓘGreigite ?2.DA.05Fe2+Fe3+2S4
ⓘViolarite2.DA.05Fe2+Ni3+2S4
ⓘLaitakarite2.DC.05Bi4(Se,S)3
ⓘPilsenite2.DC.05Bi4Te3
ⓘTsumoite2.DC.05BiTe
ⓘMolybdenite2.EA.30MoS2
ⓘAurostibite2.EB.05aAuSb2
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘNisbite2.EB.15aNiSb2
ⓘArsenopyrite2.EB.20FeAsS
ⓘGersdorffite2.EB.25NiAsS
ⓘUllmannite2.EB.25NiSbS
ⓘOrpiment2.FA.30As2S3
ⓘBournonite2.GA.50PbCuSbS3
ⓘ'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
ⓘMeneghinite2.HB.05bPb13CuSb7S24
ⓘDufrénoysite2.HC.05dPb2As2S5
ⓘBoulangerite2.HC.15Pb5Sb4S11
ⓘJordanite2.JB.30aPb14As6S23
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘMuscovite
var. Fuchsite		9.EC.15K(Al,Cr)3Si3O10(OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
Cⓘ GraphiteC
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Oⓘ KyaniteAl2(SiO4)O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Alⓘ KyaniteAl2(SiO4)O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Siⓘ KyaniteAl2(SiO4)O
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ ArgentopentlanditeAg(Fe,Ni)8S8
Sⓘ ArsenopyriteFeAsS
Sⓘ BoulangeritePb5Sb4S11
Sⓘ BournonitePbCuSbS3
Sⓘ ChalcopyriteCuFeS2
Sⓘ CubaniteCuFe2S3
Sⓘ DufrénoysitePb2As2S5
Sⓘ GalenaPbS
Sⓘ GersdorffiteNiAsS
Sⓘ GreigiteFe2+Fe23+S4
Sⓘ JordanitePb14As6S23
Sⓘ LaitakariteBi4(Se,S)3
Sⓘ MackinawiteFeS
Sⓘ MarcasiteFeS2
Sⓘ MeneghinitePb13CuSb7S24
Sⓘ MolybdeniteMoS2
Sⓘ OrpimentAs2S3
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sⓘ TroiliteFeS
Sⓘ UllmanniteNiSbS
Sⓘ ViolariteFe2+Ni23+S4
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CrChromium
Crⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ ArgentopentlanditeAg(Fe,Ni)8S8
Feⓘ ArsenopyriteFeAsS
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ CubaniteCuFe2S3
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ GreigiteFe2+Fe23+S4
Feⓘ MackinawiteFeS
Feⓘ MarcasiteFeS2
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ TroiliteFeS
Feⓘ ViolariteFe2+Ni23+S4
NiNickel
Niⓘ ArgentopentlanditeAg(Fe,Ni)8S8
Niⓘ BreithauptiteNiSb
Niⓘ GersdorffiteNiAsS
Niⓘ NickelineNiAs
Niⓘ NisbiteNiSb2
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ UllmanniteNiSbS
Niⓘ ViolariteFe2+Ni23+S4
CuCopper
Cuⓘ BournonitePbCuSbS3
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CubaniteCuFe2S3
Cuⓘ MeneghinitePb13CuSb7S24
Cuⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ DufrénoysitePb2As2S5
Asⓘ GersdorffiteNiAsS
Asⓘ JordanitePb14As6S23
Asⓘ NickelineNiAs
Asⓘ OrpimentAs2S3
Asⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
SeSelenium
Seⓘ LaitakariteBi4(Se,S)3
MoMolybdenum
Moⓘ MolybdeniteMoS2
AgSilver
Agⓘ ArgentopentlanditeAg(Fe,Ni)8S8
Agⓘ DyscrasiteAg3Sb
Agⓘ Native Gold var. Electrum(Au,Ag)
Agⓘ HessiteAg2Te
Agⓘ PetziteAg3AuTe2
Agⓘ Native SilverAg
Agⓘ StütziteAg5-xTe3, x = 0.24-0.36
SbAntimony
Sbⓘ Native AntimonySb
Sbⓘ AurostibiteAuSb2
Sbⓘ BoulangeritePb5Sb4S11
Sbⓘ BournonitePbCuSbS3
Sbⓘ BreithauptiteNiSb
Sbⓘ DyscrasiteAg3Sb
Sbⓘ MeneghinitePb13CuSb7S24
Sbⓘ NisbiteNiSb2
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sbⓘ UllmanniteNiSbS
TeTellurium
Teⓘ AltaitePbTe
Teⓘ HessiteAg2Te
Teⓘ PetziteAg3AuTe2
Teⓘ PilseniteBi4Te3
Teⓘ StütziteAg5-xTe3, x = 0.24-0.36
Teⓘ TsumoiteBiTe
AuGold
Auⓘ AurostibiteAuSb2
Auⓘ Native Gold var. Electrum(Au,Ag)
Auⓘ Native GoldAu
Auⓘ PetziteAg3AuTe2
PbLead
Pbⓘ AltaitePbTe
Pbⓘ BoulangeritePb5Sb4S11
Pbⓘ BournonitePbCuSbS3
Pbⓘ DufrénoysitePb2As2S5
Pbⓘ GalenaPbS
Pbⓘ JordanitePb14As6S23
Pbⓘ MeneghinitePb13CuSb7S24
BiBismuth
Biⓘ Native BismuthBi
Biⓘ LaitakariteBi4(Se,S)3
Biⓘ PilseniteBi4Te3
Biⓘ TsumoiteBiTe

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Somali PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Ghebreab, W, Yohannes, E, Giorgis, L.W (1992) The Lega Dembi gold mine: an example of shear zone-hosted mineralization in the Adola greenstone belt, Southern Ethiopia. Journal of African Earth Sciences (and the Middle East), 15 (3) 489-500 doi:10.1016/0899-5362(92)90030-g
Billay, A. Y., Kisters, A. F. M., Meyer, F. M., Schneider, J. (1997) The geology of the Lega Dembi gold deposit, southern Ethiopia: implications for Pan-African gold exploration. Mineralium Deposita, 32 (5) 491-504 doi:10.1007/s001260050117
Cook, Nigel J, Ciobanu, Christina L (2000) Investigation of opaque mineralogy, Lega Dembi gold deposit, Ethiopia. (114)
Tadesse, Solomon (2004) Genesis of the Shear Zone-related Gold Vein Mineralization of the Lega Dembi Gold Deposit, Adola Gold Field, Southern Ethiopia. Gondwana Research, 7 (2) 481-488 doi:10.1016/s1342-937x(05)70799-1
Jilo, Nagessa Zerihun, Assefa, Siraj Mulugeta, Assefa, Eleyas (2024) Numerical analysis of underground tunnel deformation: a case study of Midroc Lega-Dembi gold mine. Scientific Reports, 14 (1) doi:10.1038/s41598-024-57621-x
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