New research is getting closer to explaining the mechanisms by which rocks containing rare earths form.

Gold Fields takeover target Yamana Gold continues to own 56.25% and remains the operator of the MARA copper-gold project.

German researchers say rare-earth metals in alloy powders can be used to produce flashes that shift from golden to green and continuously branch.

Operations at the company's Yauricocha mine remain suspended as residents from a nearby town have blocked access to the site.

Forecast reflects expectations that aggregate EBITDA will contract for the largest Moody's-rated metals and mining companies.

US-based engineers are developing new technologies to detect and prevent potential failures of coal waste storage facilities.

It now expects to produce around 2,000 ounces of gold for the three months to Sep. 30, down from a previous 2,900-3,500 ounces range.