Rio Tinto



A drill crew at Rio Tinto's Simandou iron ore project in Guinea. Credit: Rio Tinto.

Rio Tinto faces scrutiny of 
African projects

Rio Tinto (NYSE: RIO) faces a new probe by U.S. regulators, according to the Financial Times. The London-based newspaper, quoting “sources close to the company,” reported that the U.S. Securities…








Diamonds from Peregrine Diamonds' CH-7 kimberlite at its Chidliak project. Credit: Peregrine Diamonds

Rock Hounds

Diamonds in Canada’s annual roundup of Canadian-listed producers, developers and active juniors Alto Ventures Alto Ventures (TSXV: ATV) has negotiated more time to earn a 60% stake in the GEFA…


A rough diamond from Dominion Diamond's Ekati mine. Credit: Dominion Diamond

Tough year tests Dominion

It’s been a turbulent year for Dominion Diamond (TSX: DDC; NYSE: DDC). 2015 was always expected to be a transitional year for the miner: At its 88.9%-owned Ekati mine, the…



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