Cecilia Jamasmie , Senior Editor

Canadian Lumina Copper Corp. (CVE:LCC) fell 8.5% Tuesday after the company hinted its expected sale will have to wait as it plans to carry a study at its Taca Taca massive copper/gold/molybdenum deposit in Argentina.

Only two months after swapping CEOs, Kinross Gold Corporation (TSX: K; NYSE: KGC) has announced its chief financial officer, Paul Barry, is leaving the company “to pursue other interests.”

Xstrata Coal (LON:XTA) began to reduce its workforce across its Australian coal operations by firing its first 40 permanent employees out of the 600 announced cuts.

Venezuela's President Hugo Chavez’s easy re-election has given him another six years as the head of the oil-rich South American country. It has also given mining and oil companies another reason to look for greener pastures.

Anglo Asian Mining disclosed Tuesday a surge in gold production at its flagship gold, copper and silver mine, in Azerbaijan, in the third quarter.

South Africa's Gold One followed Amplats example and fired Tuesday 1,435 of its 1,900 Ezulwini employees in South Africa, after a week-long illegal strike.

“The Silver Bomb: Beyond The Return Of Metal As Money” has come up with an infographic that explores why some investing experts believe that silver’s price may outpace gold.

Africa-focused junior miner Firestone Diamonds reported that the quality and value of diamonds recovered at its ‎Liqhobong plant in Lesotho has improved since the company shut down the plant in July. ‎

Global production of diamonds reached 124 million carats last year and, according Bain & Company consultants, 13 new mines should be adding 23 million carats by the end of 2012. But Money Week’s analyst Tom Bulford is warning those and other figures are not sufficient to avoid a looming supply crunch.

Rio Tinto (LON, ASX, NYSE: RIO) have started showing Tuesday its rare Argyle pink diamonds at London’s Kensington Palace in a collection that features more than $60 million in jewellery made with the coloured gems.