Viking Mines confident that tungsten ore sorting testwork will prove cost-beneficial
ASX-listed Viking Mines has achieved positive initial results from X-ray transmission ore sorting testwork in Wedel, Germany, from mineralised material from the Linka tungsten project, in Nevada.
Viking tasked a company called Tomra to conduct the testwork, with the first inspection testwork having comprised two samples weighing about 19 kg each.
Each of the samples, one of which was sourced from the Conquest pit and the other from a Linka stockpile, was crushed and screened to between 10 mm and 40 mm to assess the amenability of the Linka mineralisation to sensor-based pre-concentration.
Viking MD and CEO Julian Woodcock says these initial ore sorting results are an important step in the company's strategy to define a rapid, low-cost pathway to production at Linka. "The clear presence of scheelite in the high-grade sorted fraction gives encouragement that the technology could have direct benefits to the project," he confirms.
Woodcock adds that ore sorting is in place for many operating tungsten mines globally, however, if Viking can confirm that it is able to use the technology to reject a meaningful proportion of waste prior to milling, gravity and flotation, it has the potential to both upgrade run-of-mine feed and unlock value from existing stockpiles.
“We look forward to receiving the product assays in July, which will allow us to quantify the grade uplift and recovery achieved. Subsequently, we will be able to determine the cost:benefit of applying this technology in our conceptual process flow sheet for the Linka project.”
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