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Rössing Uranium Mine, Arandis, Erongo Region, Namibia

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Latitude & Longitude (WGS84): 22° 28' 41'' South , 15° 3' 35'' East
Latitude & Longitude (decimal): -22.47806,15.06000
GeoHash:G#: kk48neyrg
Owned/operated by:Rio Tinto Group
Locality type:Mine (Active) - last checked 2018
Köppen climate type:BWh : Hot deserts climate


A huge open-pit uranium mine owned by Rio Tinto Zinc Corp. (46.5%) & Industrial Development Corp. of South Africa (13%) & 4 others.
The deposit was discovered in 1928. The mine was producing an estimated 4,000 tons per year (1982 thru 1984); from 2002-2006 the production ranged from about 2,400 to 3,800 t of U3O8 per year. The lifetime of the mine is expected to extend beyond 2020 (situation in 2007).

The mine is worked for uranium minerals (uraninite, betafite and secondary U-minerals) in leucogranite sheets. Granites in the Rössing Uranium Mine SJ area are dominated by sheeted leucogranites that intruded into weak zones such as faults and shear zones and preferentially at the Khan/Rössing metasedimentary formations.

Located in the Namib Desert area south of Arandis, about 70 km north-east of Swakopmund, near the town Arandis.

NOTES:
1. Spectacular specimens of bright orange, acicular boltwoodite crystals, which have been on the market during the last 25-30 years, were first labelled as coming from a "Boltwoodite locality near Arandis", and later from "Rössing" and thus confused with the Rössing Uranium mine in the area (which never produced any boltwoodite specimens). The correct locality is Goanikontes see http://www.mindat.org/loc-7864.html
2. Milarite labeled "Rössing" has not been found at this locality but in a pegmatite in Rössing Mountains Area see http://www.mindat.org/loc-221312.html

Also see the discussion on the messageboard: http://www.mindat.org/mesg-7-173021.html

Note on the mineral list: the spinel and clinohumite (both in marble) may come from a locality near Rössing.


Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


45 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Ediacaran - Cryogenian
541 - 720 Ma



ID: 3306663

Age: Neoproterozoic (541 - 720 Ma)

Lithology: Sedimentary and volcaniclastic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Neoproterozoic
541 - 1000 Ma



ID: 3186935
Neoproterozoic sedimentary rocks

Age: Neoproterozoic (541 - 1000 Ma)

Stratigraphic Name: Damara Supergroup

Lithology: Metasedimentary/metavolcanic schist

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mining Annual Review (1985) 423.
Zambezi Resources Limited (2006) Progress Report on Oryx (Uranium Project).
Kinnaird, J.A. and Nex, P.A.M. (2007) A review of geological controls on uranium mineralisation in sheeted leucogranites within the Damara Orogen, Namibia. Transactions of the Institution of Mining and Metallurgy, B, Applied Earth Science, V. 116, pp. 68-85.
Abraham, I.M. (2009) Geology and spatial distribution of uranium mineralisation in the SK anomaly area, Rossing area, Namibia. Master thesis University of the Witwatersrand.

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