Geita Mine, Lake Victoria Goldfield, Geita Region, Tanzaniai
| Regional Level Types | |
|---|---|
| Geita Mine | Mine |
| Lake Victoria Goldfield | Mining Field |
| Geita Region | Region |
| Tanzania | Country |
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Latitude & Longitude (WGS84):
2° 51' 55'' South , 32° 11' 2'' East
Latitude & Longitude (decimal):
Locality type:
Deposit first discovered:
Before 1936
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Geita | 40,000 (2018) | 5.4km |
| Kasamwa | 27,681 (2016) | 27.7km |
| Katoro | 49,691 (2016) | 36.3km |
| Buseresere | 52,870 (2018) | 38.6km |
| Chato | 27,776 (2016) | 52.8km |
Owned/operated by:
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).
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Standard Detailed Gallery Strunz Chemical ElementsCommodity 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-localities28 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
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Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Localities: Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Altaite Formula: PbTe Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 Localities: Reference: 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. |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Baryte Formula: BaSO4 Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 Localities: Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Calaverite Formula: AuTe2 Reference: Large, R.R.; Maslennikov, V.V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals 10, 339.; Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ Calcite Formula: CaCO3 Localities: Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Chalcopyrite Formula: CuFeS2 Reference: 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, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ 'Chlorite Group' Localities: Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. |
| ⓘ Dolomite Formula: CaMg(CO3)2 Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ Epidote Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) Localities: Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ Galena Formula: PbS Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Gold Formula: Au Localities: Reference: 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.; Large, R.R.; Maslennikov, V.V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals 10, 339.; Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. ; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Gold var. Electrum Formula: (Au,Ag) Reference: Ryt, M.R. & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan. (2019). Trace element associations in magnetite and hydrothermal pyrite from the Geita Hill gold deposit, Tanzania. Journal of Geochemical Exploration. 209. 106418. 10.1016/j.gexplo.2019.106418. |
| ⓘ Graphite Formula: C Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ Greenalite Formula: (Fe2+,Fe3+)2-3Si2O5(OH)4 Reference: Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. |
| ⓘ Hematite Formula: Fe2O3 Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ Hessite Formula: Ag2Te Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ 'Hornblende' Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ 'K Feldspar' Formula: KAlSi3O8 Localities: Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Localities: Reference: 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.; Large, R.R.; Maslennikov, V.V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals 10, 339.; Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. ; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Minnesotaite Formula: Fe2+3Si4O10(OH)2 Reference: Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. |
| ⓘ 'Monazite' Formula: REE(PO4) Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Reference: Sanislav, I. V., Kolling, S. L., Brayshaw, M., Cook, Y. A., Dirks, P. H., Blenkinsop, T. G., ... & Ruhega, R. (2015). The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69, 1-16. |
| ⓘ Nagyágite Formula: [Pb3(Pb,Sb)3S6](Au,Te)3 Reference: Large, R.R.; Maslennikov, V.V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals 10, 339.; Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Localities: Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ Pyrite Formula: FeS2 Localities: Reference: Large, R.R.; Maslennikov, V.V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals 10, 339.; Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. ; Ryt, M.R. & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan. (2019). Trace element associations in magnetite and hydrothermal pyrite from the Geita Hill gold deposit, Tanzania. Journal of Geochemical Exploration. 209. 106418. 10.1016/j.gexplo.2019.106418.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Pyrite var. Gold-bearing Pyrite Formula: FeS2 Localities: Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ Pyrrhotite Formula: Fe1-xS Localities: Reference: 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, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Quartz Formula: SiO2 Localities: Reference: 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, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. ; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Rutile Formula: TiO2 Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ Siderite Formula: FeCO3 Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Sphalerite Formula: ZnS Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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.; Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982. |
| ⓘ Stilpnomelane Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O Reference: Kühn, S.. (2009). The Geita Mine in Tanzania, a review. Documenta Naturae. 177. 75 - 85. |
| ⓘ Strontianite Formula: SrCO3 Reference: Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
| ⓘ Sylvanite Formula: AgAuTe4 Reference: Large, R.R.; Maslennikov, V.V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals 10, 339.; Van Ryt, M. R., Sanislav, I. V., Dirks, P. H., Huizenga, J. M., Mturi, M. I., & Kolling, S. 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. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| ⓘ | var. Electrum | 1.AA.05 | (Au,Ag) |
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Altaite | 2.CD.10 | PbTe |
| ⓘ | Calaverite | 2.EA.10 | AuTe2 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Hessite | 2.BA.60 | Ag2Te |
| ⓘ | Nagyágite | 2.HB.20a | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | var. Gold-bearing Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Sylvanite | 2.EA.05 | AgAuTe4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Strontianite | 5.AB.15 | SrCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Epidote | 9.BG.05a | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| ⓘ | Greenalite | 9.ED.15 | (Fe2+,Fe3+)2-3Si2O5(OH)4 |
| ⓘ | Minnesotaite | 9.EC.05 | Fe2+3Si4O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Stilpnomelane | 9.EG.40 | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Hornblende' | - | |
| ⓘ | 'K Feldspar' | - | KAlSi3O8 |
| ⓘ | 'Monazite' | - | REE(PO4) |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| H | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Greenalite | (Fe2+,Fe3+)2-3Si2O5(OH)4 |
| H | ⓘ Minnesotaite | Fe32+Si4O10(OH)2 |
| H | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Siderite | FeCO3 |
| C | ⓘ Strontianite | SrCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Graphite | C |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ K Feldspar | KAlSi3O8 |
| O | ⓘ Strontianite | SrCO3 |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | ⓘ Monazite | REE(PO4) |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Greenalite | (Fe2+,Fe3+)2-3Si2O5(OH)4 |
| O | ⓘ Minnesotaite | Fe32+Si4O10(OH)2 |
| O | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘ K Feldspar | KAlSi3O8 |
| Al | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ K Feldspar | KAlSi3O8 |
| Si | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Greenalite | (Fe2+,Fe3+)2-3Si2O5(OH)4 |
| Si | ⓘ Minnesotaite | Fe32+Si4O10(OH)2 |
| Si | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| P | ⓘ Monazite | REE(PO4) |
| S | Sulfur | |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Pyrite var. Gold-bearing Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| K | ⓘ K Feldspar | KAlSi3O8 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Ca | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Pyrite var. Gold-bearing Pyrite | FeS2 |
| Fe | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Greenalite | (Fe2+,Fe3+)2-3Si2O5(OH)4 |
| Fe | ⓘ Minnesotaite | Fe32+Si4O10(OH)2 |
| Fe | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Sr | Strontium | |
| Sr | ⓘ Strontianite | SrCO3 |
| Ag | Silver | |
| Ag | ⓘ Sylvanite | AgAuTe4 |
| Ag | ⓘ Hessite | Ag2Te |
| Ag | ⓘ Gold var. Electrum | (Au,Ag) |
| Sb | Antimony | |
| Sb | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Te | Tellurium | |
| Te | ⓘ Calaverite | AuTe2 |
| Te | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Te | ⓘ Sylvanite | AgAuTe4 |
| Te | ⓘ Altaite | PbTe |
| Te | ⓘ Hessite | Ag2Te |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Au | ⓘ Calaverite | AuTe2 |
| Au | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Au | ⓘ Sylvanite | AgAuTe4 |
| Au | ⓘ Gold var. Electrum | (Au,Ag) |
| Pb | Lead | |
| Pb | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Pb | ⓘ Altaite | PbTe |
| Pb | ⓘ Galena | PbS |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)J. Afr.Earth Sci., 18 (2), 111-121
Geol. Jb., D 100, 545-595
Geol. Rundschau, 79 (2), 355-371.
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., Standing, J.S., Davidson, G. (2009) The geology and mineralization at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita, 44(7), 751-764.
Van Ryt, M.R., Sanislav, I.V., Dirks, P.H., Huizenga, J.M., Mturi, M.I., Kolling, S.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.
Ryt, M.R. & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan. (2019). Trace element associations in magnetite and hydrothermal pyrite from the Geita Hill gold deposit, Tanzania. Journal of Geochemical Exploration. 209. 106418. 10.1016/j.gexplo.2019.106418.
Ryt, Matthew & Sanislav, Ioan & Dirks, Paul & Huizenga, Jan & Mturi, Marwa & Kolling, Sergio. (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. 102982. 10.1016/j.oregeorev.2019.102982.
Large, R.R., Maslennikov, V.V. (2020) Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits. Minerals 10, 339.
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| Wikipedia: | https://en.wikipedia.org/wiki/Geita_Gold_Mine |
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- Lake Victoria Goldfield
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Geita Mine, Lake Victoria Goldfield, Geita Region, Tanzania