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Mining news and commentary from around the globe. Daily updates on gold and commodity prices, exploration, mine development and mining company activities. ... Copper rally lifts Antofagasta’s profits — up 88% in first half of 2017

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Mining Technology

Molly Lempriere Boosting black ownership of South African mines South Africa’s new Mining Charter, aimed at increasing black ownership and participation in the sector, has come under harsh criticism from a large faction of the ...

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Australia's economic gold resource is just over 5,200 tonnes. About 60% of Australia's resources occur in Western Australia, with the remainder in all other States and the Northern Territory. Virtually all resources occur in primary ...

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The Role of Mining in the South African Economy Johannes Fedderke and Farah Pirouz ERSA, University of the Witwatersrand ABSTRACT: This paper examines thecontribution ofthreeaggregate mining sectors oftheSouth African ...

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News and information concerning all aspects of worldwide mining and mineral exploration.

Chapter 82 - Metal Processing and Metal Working Industry

Zinc Zinc concentrate is produced by separating the ore, which may contain as little as 2% zinc, from waste rock by crushing and flotation, a process normally performed at the mining site. The zinc concentrate is then reduced to zinc ...

Glossary of Mining Terms - rocksandminerals.com

Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a ...

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How important is mining to the SA Economy. It …

The case of Gold Mining in South Africa is somewhat different to the norm. In the seventies and eighties the higher gold price offered a choice to the mines. They could choose to mine shafts with lower grade, that is ore with lower gold ...

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