New Pacific Metals (TSX:NUAG, NYSE:NEWP) Corp and its Bolivian partner have reported positive preliminary metallurgical test results from the Carangas silver-gold project in Oruro Department, Bolivia.
The company said its ongoing metallurgical testwork program consists of scoping-level cyanide leach and flotation testing and is carried out by Bureau Veritas’ Metallurgical Division in Richmond, British Columbia, Canada.
Cyanide leach tests for the fresh gold samples for the sample with less than 1% sulphur achieved 98.8% gold recovery and the second gold sample with approximately 3% sulphur content achieved 98.5% gold recovery, the company reported.
READ: New Pacific Metals Corp unearths further gold and silver grades at Carangas project
The near-surface, overlying oxidized, oxidized to semi-oxidized, and fresh silver-lead-zinc samples were tested with cyanide leaching and flotation, the company said.
The cyanide leach tests achieved silver recoveries of 84.1%, 85% and 74.3%, respectively and whole ore flotation tests achieved silver recoveries of 72-77%, 90-94% and 99%, respectively.
Flotation tests for oxidized to semi-oxidized samples also achieved zinc recoveries of 93% to 95% and 98% to 99% lead and 96% to 97% zinc flotation recoveries were achieved for the fresh silver-lead-zinc sample, the company added.
The company said these preliminary test results clearly demonstrated that high gold recovery rates can be expected using cyanide leaching and for silver, lead, and zinc through conventional cyanide leaching and flotation for silver-lead-zinc mineralized materials.
A full breakdown of the results can be found here.
New Pacific Metals (TSX:NUAG, NYSE:NEWP) is a Canadian exploration and development company with precious metal projects in Bolivia.
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