Chile is encountering a growing number of sulfur-based ore layers containing toxic arsenic in its copper mines.

“This discovery will influence our understanding of the tectonic models and how the eastern coast of Australia formed.”

The miner is preparing for two rounds of layoffs to take effect on Sept. 25 and Oct. 11, if it doesn't obtain a permit to continue extracting 6 million tonnes of iron ore a year.

Royal Gold paid $525 million in cash to Rio Tinto for a 1.2% gross royalty on the Cortez gold complex in Nevada.

The development of earth’s solid inner core had everything to do with the rejuvenation of the swirling liquid iron in the planet’s outer core, which generates its protective magnetic field, something that Mars doesn’t have.

CEO Chris Griffith told MINING.COM there is still some pushback on the premium, but said shareholders are starting to understand the strategy.