Russian oil spill cleanup to stretch into 2021

The 121.26-carat white rock is a Type II diamond "of exceptional colour and clarity," according to Petra.

Chief executive Andrew Mackenzie believes the iron ore market will take longer to balance out than other commodities due to an excess of supply coming on stream in the next few years.

Andrew Harding, once tipped as the most likely person to take the company’s reins, is being replaced by Chris Salisbury, currently leading the copper and coal division.

It is estimated that processing one ton of rare earths these days can generate about 2,000 tons of toxic waste.

The global rare earth market is expected to grow from the $1.4 billion it was worth back in 2010 to $4.1 billion by 2017.

Decision follows the West African country order to expatriates whose work permits were invalid to stop working.

Tesla Model 3 promises to move electric cars from niche to mainstream, spurring larger electric car adoption in transport, according to Wood Mackenzie’s latest research.

Vancouver-based Nevsun sweetened the deal for Reservoir shareholders with a $75 million cash payment just before the vote.

Studies underway at Boulby Underground Laboratory, the UK's deep underground science facility, include the analyses of cosmic rays and climate, as well as astrobiology and life in extreme environments.