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Sleisbeck Mine, Roper Gulf Region, Northern Territory, Australia

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Latitude & Longitude (WGS84): 13° 46' South , 132° 49' East
Latitude & Longitude (decimal): -13.7666666667, 132.816666667

Uranium mine, worked in 1957.

The Sleisbeck mine is 40 kilometres by rough track south-east of Coronation Hill in the upper Katherine River valley, but all references found cite it as part of the South Alligator mineral field. It was mined by North Australian Uranium NL, and the ore was trucked to Rum Jungle to be processed.

It produced 600 tonnes at 0.4% U3O8. The bulk of the ore was found in a quartz-hematite breccia, regarded as a silicified dolomitic rock, and the deposit was associated with minor phosphate rocks. Another reference states the ore was pitchblende found in chlorite schist of the Kapalga Formation.

A 1990 inspection found an open pit 100 x 30 metres and three dump areas. The pit was flooded, but with exposed uranium mineralisation on the eastern side of the pit. The dumps were 100 metres west of the pit consisting of overburden and low grade uranium ore covering an area 20 x 80 metres and only 0.5 metres high. Literature indicates the mine site has been completely rehabilitated and nothing remains.

Mineral List

7 valid minerals.

The above list contains all mineral locality references listed on 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 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.


Henry, D.A., Pogson, R.E., Williams, P.A. (2005): Threadgoldite from the South Alligator Valley Uranium Field, Northern Territory, Australia: second world occurrence. Australian Journal of Mineralogy (2005): 11, 7-11.

Crohn, P.W. (1968): The Mines and Mineral Deposits of the Katherine-Darwin Region, Department of National Development/Bureau of Mineral Resources Geology and Geophysics, Commonwealth of Australia (1968): Bulletin 82.

Ryan, B., Tims, S.(1988): Radiation Surveys of the El Sherana Camp Site and Sleisbeck Pit and Waste Rock Piles, Environmental Research Institute of the Supervising Scientist, Supervising Scientist for the Alligator Rivers Region (1988): Internal Report 284.

McKay, A.D., Miezitisy, Y.(2001): Australia's Uranium Resources Geology and Development of Deposits, AGSO (2001): Geoscience Australia Mineral Resource Report 1.

矿物 and/or 产地  
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