INFOGRAPHIC: 2014 Forbes billionaire facts and figures

An armed attack on the Twanziga gold mine in eastern Democratic Republic of Congo (DRC) Tuesday has resulted in four casualties.

Everybody seems to love Graphene, the one-atom-thick sheets of carbon that aren't just super flexible, harder than diamond, and stronger than steel, but are also able to conduct electricity better than copper.

The NYSE Arca gold miners index, which includes nearly 50 names such as Barrick Gold and Newmont Mining, has gained more than 8.5% in the past week.

Should the government go ahead with all the recommended shutdowns and suspensions, global supply of nickel will drop by about 8%.

Taseko Mines (TSX:TKO) is not giving up on its plan to build a large copper-gold mine in north-central British Columbia, despite two earlier rejections by the Government of Canada.

The company's request for government mediation effectively extends talks and pushes back the start of a potential strike to Feb. 13.

New report shows 2016 inflows into gold ETFs in the US in Europe increased to second highest on record, but all other sources of demand dropped sharply.

Miner says that each month of delay in obtaining approval to export means production would be reduced by 70 million pounds of copper and 70,000 ounces of gold.

The US Securities and Exchange Commission is reconsidering the rule, which requires companies to trace and report whether their products contain minerals from a war-torn part of Africa.