All mining articles – Page 2
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OpinionRare earth magnates
China’s monopoly on production has a global impact, argues David Abraham
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FeatureGoing for gold
Nina Notman looks at attempts to reduce the environmental impacts of small-scale gold mining
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NewsArgentina mine accident spills cyanide into rivers
More than a million litres of cyanide solution entered nearby rivers after a gold mine accident in Argentina
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NewsEnvironment agency accident releases toxic mine waste into US rivers
More than 11 million litres of metal-contaminated water from defunct Colorado mine enters major US waterways
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FeatureMicrobial miners
Jon Evans discovers the microbes hard at work on our behalf, extracting valuable metals from low-grade ore
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Business
US coal companies fined over water pollution
Comprehensive upgrades required to water treatment systems at mines and processing plants
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Business
Air Products looks for alternative helium sources
Concerns over supplies lead to plan to extract the gas from carbon dioxide sinks
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FeatureExtreme extraction
The increasing price of precious metals has prompted mineral prospectors to consider unusual places. Jon Evans looks into the future of mining
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Business
OM Group to exit cobalt business
Deal worth up to $435 million includes downstream activities, in particular cobalt refining in Kokkola, Finland
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FeatureTreasures from the deep
Mining companies are exploring underwater volcanic vents, hoping to extract metals such as gold and copper. Victoria Gill looks at the technical, environmental and political hurdles
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