Cobalt

Find out about the indicators Holmes watches to read the market's pulse, and why a +/- 35% move for gold doesn't keep him awake at night.

Centralized modern processing could make it possible for mining companies in the United States, Europe and Australia to start producing truly critical materials with small capex.

The ship will accommodate as many as 180 people and is expected to be delivered by the end of 2017.

Shares down 19% after hours after production at its Mountain Pass rare earth mine in California slumps 58% and costs more than double.

Investors in Australia's junior mining sector are feeling the same pain as those in North America but Paul Adams, an analyst with brokerage firm DJ Carmichael in Perth, believes select junior resource companies will outperform the broad markets as macro-level events impact certain commodities.

Costs and challenges for mining the Arctic, meanwhile, on their way up.

Sources close to X2 Resources, Davis' new company, have cast doubts on reports that the firm had made an offer.

The country's ultimate purpose is to extract rare earth elements, breaking China's dominance and pushing prices down.

World's dominant supplier of rare earth elements reveals a huge portion of supply used in magnets is illegally mined; much larger than initially anticipated