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PC Gold Metallurgy Hits 99.4% Gold Recovery in Spring Hill Tests
PC Gold (ASX:PC2) reports up to 99.4% gold extraction from PFS metallurgical tests at Spring Hill, with coarser grind reducing power costs. Updated MRE due mid-December.
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PC Gold (ASX: PC2) posted strong results from pre-feasibility metallurgical testing at its Spring Hill project in the Northern Territory. Six master composite samples covering the oxide and transitional zones, along with fresh rock, returned gold extraction rates as high as 99.4%, the company said.
CEO Ashley Pattison said the tests confirmed "strong gravity recovery, very low abrasion and excellent overall gold extraction" and that the weathered mineralisation showed free-milling characteristics. The biggest surprise, according to Pattison, was that the oxide domains liberate at a substantially coarser grind size than previously assumed.
"The grind size of the mineralisation is the critical driver towards the power consumption of the plant," Pattison said. "At a coarser grind size, this has the potential to materially reduce grinding power requirements and therefore processing costs, relative to a finer grind, while also providing potential for higher plant throughput."