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Loulo Mining area, Kéniéba Cercle, Kayes Region, Malii
Regional Level Types
Loulo Mining areaMine
Kéniéba CercleCercle
Kayes RegionRegion
MaliCountry

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Latitude & Longitude (WGS84):
13° 5' 10'' North , 11° 24' 47'' West
Latitude & Longitude (decimal):
13.08637,-11.41318
GRN:
N09W08
Type:
Mine
Köppen climate type:
Aw : Tropical savanna, wet
Owned/operated by:
Randgold Resources (80%)
Mindat Locality ID:
29404
Long-form identifier:
mindat:1:2:29404:6
GUID (UUID V4):
0
Other/historical names associated with this locality:
Loulo-Gounkoto Gold Mine Complex; Loulo Mining District; Loulo gold project


A gold mine complex in western Mali, 220 km south of Kayes.
Operated by Randgold Resources Ltd (2017)

The 17+ Moz Loulo Au mining district in the Kédougou- Kéniéba inlier in western Mali and eastern Senegal is one of the most richly endowed orogenic Au districts in the West Africa craton (Fig. 1). It hosts three major, multimillion-ounce deposits, including Gara, Yalea, and Gounkoto, and numerous satellite deposits that typically contain <1 Moz Au (e.g., Baboto, Faraba, Loulo 3, Loulo 2, P64, and P129).

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAlbite
Formula:Na(AlSi3O8)
ⓘAnkerite
Formula:Ca(Fe2+,Mg)(CO3)2
ⓘ'Apatite'
Formula:Ca5(PO4)3(Cl/F/OH)
ⓘArsenopyrite
Formula:FeAsS
ⓘ'Biotite'
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘCalaverite
Formula:AuTe2
ⓘCalcite
Formula:CaCO3
ⓘChalcocite
Formula:Cu2S
ⓘChalcopyrite
Formula:CuFeS2
ⓘChamosite var. Brunsvigite
Formula:(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
ⓘ'Chlorite Group'
ⓘClausthalite
Formula:PbSe
ⓘClinochlore
Formula:Mg5Al(AlSi3O10)(OH)8
ⓘClinochlore var. Pycnochlorite
Formula:Mg5Al(AlSi3O10)(OH)8
ⓘCobaltite
Formula:CoAsS
ⓘCovellite
Formula:CuS
ⓘDravite
Formula:NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ'Feldspar Group'
ⓘGalena
Formula:PbS
ⓘGersdorffite
Formula:NiAsS
ⓘGoethite
Formula:Fe3+O(OH)
ⓘHematite
Formula:Fe2O3
ⓘJamesonite
Formula:Pb4FeSb6S14
ⓘ'Limonite'
ⓘMagnetite
Formula:Fe2+Fe3+2O4
ⓘMillerite
Formula:NiS
ⓘMolybdenite
Formula:MoS2
ⓘ'Monazite Group'
Formula:REE(PO4)
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘMuscovite var. Sericite
Formula:KAl2(AlSi3O10)(OH)2
ⓘNative Gold
Formula:Au
ⓘPentlandite
Formula:(NixFey)Σ9S8
ⓘPetzite
Formula:Ag3AuTe2
ⓘPolydymite
Formula:Ni2+Ni3+2S4
ⓘPyrite
Formula:FeS2
ⓘPyrrhotite
Formula:Fe1-xS
ⓘQuartz
Formula:SiO2
ⓘRhodochrosite
Formula:MnCO3
ⓘRutile
Formula:TiO2
ⓘScheelite
Formula:Ca(WO4)
ⓘSchorl
Formula:NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSphalerite
Formula:ZnS
ⓘSylvanite
Formula:AgAuTe4
ⓘ'Tennantite Subgroup'
Formula:Cu6(Cu4C2+2)As4S12S
ⓘ'Tourmaline'
Formula:AD3G6(T6O18)(BO3)3X3Z
ⓘUllmannite
Formula:NiSbS
ⓘ'Xenotime'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘPetzite2.BA.75Ag3AuTe2
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMillerite2.CC.20NiS
ⓘClausthalite2.CD.10PbSe
ⓘGalena2.CD.10PbS
ⓘPolydymite2.DA.05Ni2+Ni3+2S4
ⓘSylvanite2.EA.05AgAuTe4
ⓘCalaverite2.EA.10AuTe2
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘCobaltite2.EB.25CoAsS
ⓘGersdorffite2.EB.25NiAsS
ⓘUllmannite2.EB.25NiSbS
ⓘ'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
ⓘJamesonite2.HB.15Pb4FeSb6S14
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘRhodochrosite5.AB.05MnCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘDravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘChamosite
var. Brunsvigite		9.EC.55(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
ⓘClinochlore
var. Pycnochlorite		9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Feldspar Group'-
ⓘ'Limonite'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Xenotime'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
HⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
HⓘClinochloreMg5Al(AlSi3O10)(OH)8
HⓘDraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
HⓘGoethiteFe3+O(OH)
HⓘMuscoviteKAl2(AlSi3O10)(OH)2
HⓘSchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
HⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
HⓘChamosite var.Brunsvigite(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
HⓘApatiteCa5(PO4)3(Cl/F/OH)
HⓘClinochlore var.PycnochloriteMg5Al(AlSi3O10)(OH)8
BBoron
BⓘDraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
BⓘSchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
BⓘTourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
CⓘAnkeriteCa(Fe2+,Mg)(CO3)2
CⓘCalciteCaCO3
CⓘRhodochrositeMnCO3
OOxygen
OⓘAlbiteNa(AlSi3O8)
OⓘAnkeriteCa(Fe2+,Mg)(CO3)2
OⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
OⓘCalciteCaCO3
OⓘClinochloreMg5Al(AlSi3O10)(OH)8
OⓘDraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
OⓘGoethiteFe3+O(OH)
OⓘHematiteFe2O3
OⓘMagnetiteFe2+Fe23+O4
OⓘMonazite GroupREE(PO4)
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘQuartzSiO2
OⓘRhodochrositeMnCO3
OⓘRutileTiO2
OⓘScheeliteCa(WO4)
OⓘSchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
OⓘTourmalineAD3G6(T6O18)(BO3)3X3Z
OⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
OⓘChamosite var.Brunsvigite(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
OⓘApatiteCa5(PO4)3(Cl/F/OH)
OⓘClinochlore var.PycnochloriteMg5Al(AlSi3O10)(OH)8
FFluorine
FⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FⓘApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
NaⓘAlbiteNa(AlSi3O8)
NaⓘDraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
NaⓘSchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
MgⓘAnkeriteCa(Fe2+,Mg)(CO3)2
MgⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgⓘClinochloreMg5Al(AlSi3O10)(OH)8
MgⓘDraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
MgⓘChamosite var.Brunsvigite(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
MgⓘClinochlore var.PycnochloriteMg5Al(AlSi3O10)(OH)8
AlAluminium
AlⓘAlbiteNa(AlSi3O8)
AlⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlⓘClinochloreMg5Al(AlSi3O10)(OH)8
AlⓘDraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘSchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AlⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
AlⓘChamosite var.Brunsvigite(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
AlⓘClinochlore var.PycnochloriteMg5Al(AlSi3O10)(OH)8
SiSilicon
SiⓘAlbiteNa(AlSi3O8)
SiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
SiⓘClinochloreMg5Al(AlSi3O10)(OH)8
SiⓘDraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘQuartzSiO2
SiⓘSchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
SiⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
SiⓘChamosite var.Brunsvigite(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
SiⓘClinochlore var.PycnochloriteMg5Al(AlSi3O10)(OH)8
PPhosphorus
PⓘMonazite GroupREE(PO4)
PⓘApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
SⓘArsenopyriteFeAsS
SⓘChalcopyriteCuFeS2
SⓘChalcociteCu2S
SⓘCobaltiteCoAsS
SⓘCovelliteCuS
SⓘGalenaPbS
SⓘGersdorffiteNiAsS
SⓘJamesonitePb4FeSb6S14
SⓘMilleriteNiS
SⓘMolybdeniteMoS2
SⓘPentlandite(NixFey)Σ9S8
SⓘPolydymiteNi2+Ni23+S4
SⓘPyriteFeS2
SⓘPyrrhotiteFe1-xS
SⓘSphaleriteZnS
SⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
SⓘUllmanniteNiSbS
ClChlorine
ClⓘApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
KⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
KⓘMuscoviteKAl2(AlSi3O10)(OH)2
KⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
CaⓘAnkeriteCa(Fe2+,Mg)(CO3)2
CaⓘCalciteCaCO3
CaⓘScheeliteCa(WO4)
CaⓘApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
TiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
TiⓘRutileTiO2
MnManganese
MnⓘRhodochrositeMnCO3
FeIron
FeⓘAnkeriteCa(Fe2+,Mg)(CO3)2
FeⓘArsenopyriteFeAsS
FeⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeⓘChalcopyriteCuFeS2
FeⓘGoethiteFe3+O(OH)
FeⓘHematiteFe2O3
FeⓘJamesonitePb4FeSb6S14
FeⓘMagnetiteFe2+Fe23+O4
FeⓘPentlandite(NixFey)Σ9S8
FeⓘPyriteFeS2
FeⓘPyrrhotiteFe1-xS
FeⓘSchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
FeⓘChamosite var.Brunsvigite(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
CoCobalt
CoⓘCobaltiteCoAsS
NiNickel
NiⓘGersdorffiteNiAsS
NiⓘMilleriteNiS
NiⓘPentlandite(NixFey)Σ9S8
NiⓘPolydymiteNi2+Ni23+S4
NiⓘUllmanniteNiSbS
CuCopper
CuⓘChalcopyriteCuFeS2
CuⓘChalcociteCu2S
CuⓘCovelliteCuS
CuⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
ZnZinc
ZnⓘSphaleriteZnS
AsArsenic
AsⓘArsenopyriteFeAsS
AsⓘCobaltiteCoAsS
AsⓘGersdorffiteNiAsS
AsⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
SeSelenium
SeⓘClausthalitePbSe
MoMolybdenum
MoⓘMolybdeniteMoS2
AgSilver
AgⓘPetziteAg3AuTe2
AgⓘSylvaniteAgAuTe4
SbAntimony
SbⓘJamesonitePb4FeSb6S14
SbⓘUllmanniteNiSbS
TeTellurium
TeⓘCalaveriteAuTe2
TeⓘPetziteAg3AuTe2
TeⓘSylvaniteAgAuTe4
WTungsten
WⓘScheeliteCa(WO4)
AuGold
AuⓘCalaveriteAuTe2
AuⓘNative GoldAu
AuⓘPetziteAg3AuTe2
AuⓘSylvaniteAgAuTe4
PbLead
PbⓘClausthalitePbSe
PbⓘGalenaPbS
PbⓘJamesonitePb4FeSb6S14

Localities in this Region

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
West AfricaUN Subregion

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References

Dommanget, A., Milési, J. P., & Diallo, M. (1993). The Loulo gold and tourmaline-bearing deposit. Mineralium Deposita, 28(4), 253-263.
Lawrence, D. M., Treloar, P. J., Rankin, A. H., Harbidge, P., Holliday, J. (2013) The Geology and Mineralogy of the Loulo Mining District, Mali, West Africa: Evidence for Two Distinct Styles of Orogenic Gold Mineralization.Economic Geology, 108 (2) 199-227doi:10.2113/econgeo.108.2.199
[1]Lambert-Smith, James S., Allibone, Andrew, Treloar, Peter J., Lawrence, David M., Boyce, Adrian J., Fanning, Mark (2020) Stable C, O, and S Isotope Record of Magmatic-Hydrothermal Interactions Between the Falémé Fe Skarn and the Loulo Au Systems in Western Mali.Economic Geology, 115 (7). 1537-1558doi:10.5382/econgeo.4759
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