Gold prices slipped Monday, after European Central Bank President Mario Draghi reaffirmed that debt-laden Greece won’t be forced out of the eurozone.

A team of Australian scientists have, for the first time, identified the exact source of diamond-bearing rocks known as orangeites.

Superior Industries, Inc., a major American manufacturer and global supplier of bulk material processing and handling systems, has officially completed an acquisition of Clemro Western Ltd. Based in Calgary, Alberta, Canada, the 30-year-old company is known for manufacturing jaw and cone crushers, incline and horizontal screens, and belt and grizzly feeders.

Marilyn Baptiste, a Tsilhqot’in First Nation councillor who was on the front lines in the fight against the Prosperity and New Prosperity mine is in San Francisco has received an international environmental award worth $175,000.

The announced changes will be effective on July 1, once parliament has approved them.

The flawless, 100-carat diamond could fetch up to $25 million when it goes under Sotheby's hammer in New York on Tuesday

The ongoing search for additional reserve ounces at Kibali will secure its future as a long-life mine and one of Africa’s largest gold producers, Randgold Resources chief executive Mark Bristow said.

The decision follows a similar move by Sasol, which repatriated Friday 340 of its employees working on projects in the Southeast Africa nation for their own safety.

A new adversary is emerging for coal. It comes from silicon wafers, the material used to make solar panels.