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Winza, Mpwapwa District, Dodoma Region, Tanzaniai
| Regional Level Types | |
|---|---|
| Winza | Mining Area |
| Mpwapwa District | District |
| Dodoma Region | Region |
| Tanzania | Country |
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Latitude & Longitude (WGS84):
7° 1' 21'' South , 36° 21' 35'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Name(s) in local language(s):
Winza
The Winza mining area is located 120 km SW from Dodoma, just at the bottom of Mang’alisa’s mountains. It can be reached by driving to the local town of “Mpwapwa” (pronounced “Papua”) and by a further 3 hours of driving (in the dry season) to the mining site, locally known as “Winza Mine”. It is a rather remote area, but when high-quality rubies were found here in late 2007, it soon became a booming mining settlement. In 2008, an estimated population of 5–6000 people had settled in temporary bamboo dwellings while digging the soil for gem rubies.
The Winza mining area belongs to the Paleoproterozoic Usagaran Belt, and the variety of rock types in the Winza area is enormous. High-grade metamorphic rocks, typical for high-temperature and high-pressure metamorphism (estimated a P-T of minimum 5 kb-600 °C), are found in the close vicinity of the mines, such as garnet-pyroxene amphibolites, eclogite rocks, and kyanite-garnet-biotite gneiss and schists. Isolated granites, migmatitic rocks, quartz-feldspar gneisses, and amphibolites occur as well. The corundum is found in association with amphibolites in pure corundum-garnet-pargasite rocks and very rarely in association with plagioclase-rich amphibolite. In localized zones, these metamorphosed rocks occasionally form dykes, suggesting their magmatic origin. The hard rock mining activities aim to follow these corundum-bearing amphibolites.
Similar to the Paranesti (Greece) ruby deposit.
The Winza mining area belongs to the Paleoproterozoic Usagaran Belt, and the variety of rock types in the Winza area is enormous. High-grade metamorphic rocks, typical for high-temperature and high-pressure metamorphism (estimated a P-T of minimum 5 kb-600 °C), are found in the close vicinity of the mines, such as garnet-pyroxene amphibolites, eclogite rocks, and kyanite-garnet-biotite gneiss and schists. Isolated granites, migmatitic rocks, quartz-feldspar gneisses, and amphibolites occur as well. The corundum is found in association with amphibolites in pure corundum-garnet-pargasite rocks and very rarely in association with plagioclase-rich amphibolite. In localized zones, these metamorphosed rocks occasionally form dykes, suggesting their magmatic origin. The hard rock mining activities aim to follow these corundum-bearing amphibolites.
Similar to the Paranesti (Greece) ruby deposit.
Select Mineral List Type
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-localities4 valid minerals.
Detailed Mineral List:
| ⓘ 'Almandine-Pyrope Series' |
| ⓘ Corundum Formula: Al2O3 |
| ⓘ Corundum var. Ruby Formula: Al2O3 References: |
| ⓘ Corundum var. Sapphire Formula: Al2O3 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Kyanite Formula: Al2(SiO4)O |
| ⓘ 'Mica Group' |
| ⓘ Pargasite Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| ⓘ Titanite Formula: CaTiO(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Corundum | 4.CB.05 | Al2O3 |
| ⓘ | var. Ruby | 4.CB.05 | Al2O3 |
| ⓘ | var. Sapphire | 4.CB.05 | Al2O3 |
| Group 9 - Silicates | |||
| ⓘ | Kyanite | 9.AF.15 | Al2(SiO4)O |
| ⓘ | Titanite | 9.AG.15 | CaTiO(SiO4) |
| ⓘ | Pargasite | 9.DE.15 | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Unclassified | |||
| ⓘ | 'Mica Group' | - | |
| ⓘ | 'Almandine-Pyrope Series' | - | |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| O | Oxygen | |
| O | ⓘ Corundum | Al2O3 |
| O | ⓘ Kyanite | Al2(SiO4)O |
| O | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| O | ⓘ Corundum var. Ruby | Al2O3 |
| O | ⓘ Corundum var. Sapphire | Al2O3 |
| O | ⓘ Titanite | CaTiO(SiO4) |
| O | ⓘ Almandine-Pyrope Series | |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Na | Sodium | |
| Na | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Mg | ⓘ Almandine-Pyrope Series | |
| Al | Aluminium | |
| Al | ⓘ Corundum | Al2O3 |
| Al | ⓘ Kyanite | Al2(SiO4)O |
| Al | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Al | ⓘ Corundum var. Ruby | Al2O3 |
| Al | ⓘ Corundum var. Sapphire | Al2O3 |
| Al | ⓘ Almandine-Pyrope Series | |
| Si | Silicon | |
| Si | ⓘ Kyanite | Al2(SiO4)O |
| Si | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Si | ⓘ Titanite | CaTiO(SiO4) |
| Si | ⓘ Almandine-Pyrope Series | |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Ca | Calcium | |
| Ca | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Ca | ⓘ Titanite | CaTiO(SiO4) |
| Ti | Titanium | |
| Ti | ⓘ Titanite | CaTiO(SiO4) |
| Fe | Iron | |
| Fe | ⓘ Almandine-Pyrope Series | |
Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Winza |
|---|---|
| Wikidata ID: | Q25349241 |
Localities in this Region
- Dodoma Region
- Mpwapwa District
- Winza
- Mpwapwa District
Other Regions, Features and Areas containing this locality
AfricaContinent
- East African Rift System (EARS)Zone (Tectonic)
African Plate
- Congo Craton
- Tanzania CratonCraton
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
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References
Winza, Mpwapwa District, Dodoma Region, Tanzania