NORTHWEST TERRITORIES – Minerals reserves are up at the CanTung mine, says North American Tungsten of Vancouver, due to exploration of new zones, higher prices making lower grade zones economic and planned pillar recovery. Probable reserves total 1.5 million tonnes grading 1.17% WO3.
The CanTung mine produces ore at a rate of 1,000 t/d. Mineral Reserves support a mine life of four years, ending in Q4 2014. Primary mining methods include, longhole stoping and pillar-remnant ore recovery using different techniques. Currently, longhole methods are planned for mining the majority of the remaining reserves, both for pillar recovery and for primary mining in areas with favourable geometry, said the company. Processing is carried out by gravity and flotation circuits. Final products include a premium gravity concentrate (G1), containing 65% WO3 and a flotation concentrate containing 45% WO3.
Learn more about the uses of tungsten at www.NorthAmericanTungsten.com.