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Geita Mine, Geita, Geita Region, Tanzaniai
Regional Level Types
Geita MineMine
GeitaCity
Geita RegionRegion
TanzaniaCountry

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02500860017272060811045.jpg
Geita open pit gold mine, 2005

Geita Mine, Geita, Geita Region, Tanzania
02500860017272060811045.jpg
Geita open pit gold mine, 2005

Geita Mine, Geita, Geita Region, Tanzania
02500860017272060811045.jpg
Geita open pit gold mine, 2005

Geita Mine, Geita, Geita Region, Tanzania
Latitude & Longitude (WGS84):
2° 51' 55'' South , 32° 11' 2'' East
Latitude & Longitude (decimal):
-2.86549,32.18398
GRN:
S02E23
Type:
Mine
Deposit first discovered:
Before 1936
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Geita40,000 (2018)5.4km
Kasamwa27,681 (2016)27.7km
Katoro49,691 (2016)36.3km
Buseresere52,870 (2018)38.6km
Chato27,776 (2016)52.8km
Owned/operated by:
AngloGold Ashanti Limited
Mindat Locality ID:
30320
Long-form identifier:
mindat:1:2:30320:1
GUID (UUID V4):
0


The Geita mine started production in 1936 (Geita Gold Mining Company Ltd). Between 1936 to 1966 the mine produced in excess of 1 million ounces of gold.

Gold mine in Banded Iron Formation, 50 km south of Lake Victoria.

Located in Sukumaland Greenstones, Geita Greenstone Belt.

A gallery has unspecified sulfate efflorescences (Kühn & Germann, 1992).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

28 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Altaite
Formula: PbTe
ⓘ 'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
ⓘ Baryte
Formula: BaSO4
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calaverite
Formula: AuTe2
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
References:
Kühn, S. & Germann, K. (1992): Metallogenetisches Modell für die an eine archaische Eisenformation gebundene Gold-Sulfid-Vererzung von Geita, Tansania. Z. angew. Geol. 38, 105-106.
van Ryt, Matthew R.; Sanislav, Ioan V.; Dirks, Paul H.G.M.; Huizenga, Jan M.; Mturi, Marwa I.; Kolling, Sergio L. (2017) Alteration paragenesis and the timing of mineralised quartz veins at the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 91. 765-779 doi:10.1016/j.oregeorev.2017.08.023
van Ryt, Matthew R.; Sanislav, Ioan V.; Dirks, Paul H.G.M.; Huizenga, Jan M.; Mturi, Marwa I.; Kolling, Sergio L. (2019) Biotite chemistry and the role of halogens in Archaean greenstone hosted gold deposits: A case study from Geita Gold Mine, Tanzania. Ore Geology Reviews, 111. doi:10.1016/j.oregeorev.2019.102982
ⓘ 'Chlorite Group'
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Galena
Formula: PbS
ⓘ Graphite
Formula: C
ⓘ Greenalite
Formula: (Fe2+,Fe3+)2-3Si2O5(OH)4
ⓘ Hematite
Formula: Fe2O3
ⓘ Hessite
Formula: Ag2Te
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ 'K Feldspar'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Minnesotaite
Formula: Fe2+3Si4O10(OH)2
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Nagyágite
Formula: [Pb3(Pb,Sb)3S6](Au,Te)3
ⓘ Native Gold
Formula: Au
ⓘ Native Gold var. Electrum
Formula: (Au,Ag)
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrite var. Gold-bearing Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Siderite
Formula: FeCO3
ⓘ Sphalerite
Formula: ZnS
ⓘ Stilpnomelane
Formula: K4Fe2+48[Si64Al8]O164(OH)52 · nH2O
ⓘ Strontianite
Formula: SrCO3
ⓘ Sylvanite
Formula: AgAuTe4

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
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘHessite2.BA.60Ag2Te
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘAltaite2.CD.10PbTe
ⓘGalena2.CD.10PbS
ⓘSylvanite2.EA.05AgAuTe4
ⓘCalaverite2.EA.10AuTe2
ⓘPyrite
var. Gold-bearing Pyrite		2.EB.05aFeS2
ⓘ2.EB.05aFeS2
ⓘNagyágite2.HB.20a[Pb3(Pb,Sb)3S6](Au,Te)3
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘStrontianite5.AB.15SrCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘMinnesotaite9.EC.05Fe2+3Si4O10(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘGreenalite9.ED.15(Fe2+,Fe3+)2-3Si2O5(OH)4
ⓘStilpnomelane9.EG.40K4Fe2+48[Si64Al8]O164(OH)52 · nH2O
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5(T8O22)W2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Hornblende Root Name Group'-◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'Apatite'-Ca5(PO4)3A

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ⓘ Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
Hⓘ MinnesotaiteFe32+Si4O10(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ GraphiteC
Cⓘ SideriteFeCO3
Cⓘ StrontianiteSrCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ Amphibole SupergroupAB2C5(T8O22)W2
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ BaryteBaSO4
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
Oⓘ HematiteFe2O3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MinnesotaiteFe32+Si4O10(OH)2
Oⓘ Monazite GroupREE(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ SideriteFeCO3
Oⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Oⓘ StrontianiteSrCO3
Oⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ ApatiteCa5(PO4)3A
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ DolomiteCaMg(CO3)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ⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Alⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
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ⓘ Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
Siⓘ MinnesotaiteFe32+Si4O10(OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Siⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
Pⓘ ApatiteCa5(PO4)3A
SSulfur
Sⓘ Pyrite var. Gold-bearing PyriteFeS2
Sⓘ BaryteBaSO4
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3A
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ RutileTiO2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ Pyrite var. Gold-bearing PyriteFeS2
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MinnesotaiteFe32+Si4O10(OH)2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SideriteFeCO3
Feⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
SrStrontium
Srⓘ StrontianiteSrCO3
AgSilver
Agⓘ Native Gold var. Electrum(Au,Ag)
Agⓘ HessiteAg2Te
Agⓘ SylvaniteAgAuTe4
SbAntimony
Sbⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
TeTellurium
Teⓘ AltaitePbTe
Teⓘ CalaveriteAuTe2
Teⓘ HessiteAg2Te
Teⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Teⓘ SylvaniteAgAuTe4
BaBarium
Baⓘ BaryteBaSO4
AuGold
Auⓘ CalaveriteAuTe2
Auⓘ Native Gold var. Electrum(Au,Ag)
Auⓘ Native GoldAu
Auⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Auⓘ SylvaniteAgAuTe4
PbLead
Pbⓘ AltaitePbTe
Pbⓘ GalenaPbS
Pbⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Geita_Gold_Mine

Localities in this Region

Tanzania

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Somali PlateTectonic Plate
Tanzania

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

J. Afr.Earth Sci., 18 (2), 111-121
Geol. Jb., D 100, 545-595
Borg, G., Lyatuu, D. R., Rammlmair, D. (1990) Genetic aspects of the Geita and Jubilee Reef Archean BIF-hosted gold deposits, Tanzania. Geologische Rundschau, 79 (2) 355-371 doi:10.1007/bf01830632
Kühn, S. & Germann, K. (1992): Metallogenetisches Modell für die an eine archaische Eisenformation gebundene Gold-Sulfid-Vererzung von Geita, Tansania. Z. angew. Geol. 38, 105-106.
Vos, I. M. A., Bierlein, F. P., Standing, J. S., Davidson, G. (2009) The geology and mineralisation at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita, 44 (7) 751-764 doi:10.1007/s00126-009-0245-3
van Ryt, Matthew R.; Sanislav, Ioan V.; Dirks, Paul H.G.M.; Huizenga, Jan M.; Mturi, Marwa I.; Kolling, Sergio L. (2017) Alteration paragenesis and the timing of mineralised quartz veins at the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 91. 765-779 doi:10.1016/j.oregeorev.2017.08.023
van Ryt, Matthew R.; Sanislav, Ioan V.; Dirks, Paul H.G.M.; Huizenga, Jan M.; Mturi, Marwa I.; Kolling, Sergio L. (2019) Biotite chemistry and the role of halogens in Archaean greenstone hosted gold deposits: A case study from Geita Gold Mine, Tanzania. Ore Geology Reviews, 111. doi:10.1016/j.oregeorev.2019.102982
van Ryt, M.R., Sanislav, I.V., Dirks, P.H.G.M., Huizenga, J. (2020) Trace element associations in magnetite and hydrothermal pyrite from the Geita Hill gold deposit, Tanzania. Journal of Geochemical Exploration, 209. 106418 doi:10.1016/j.gexplo.2019.106418
Large, Ross R., Maslennikov, Valeriy V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals, 10 (4) 339 doi:10.3390/min10040339
www.getamap.net (n.d.) http://www.getamap.net/maps/tanzania/mwanza/_geitamine/
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