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AbraSilver Resource Metallurgical Optimization Significantly Increases Silver and Gold Recovery Rates at Oculto Deposit
Toronto – TheNewswire - October 10, 2023: AbraSilver Resource Corp. (TSX.V:ABRA) (OTC:ABBRF) (“AbraSilver” or the “Company”) is pleased to report positive resul
About this update from Abrasilver Resource Corp.
[{"type":"text","content":"Toronto – TheNewswire - October 10, 2023: AbraSilver Resource Corp. (TSX.V:ABRA) (OTC:ABBRF) (“AbraSilver” or the “Company”) is pleased to report positive results from metallurgical optimization testing on the Oculto deposit at its wholly-owned Diablillos property in Salta Province, Argentina (“Diablillos” or the “Project”). The program was completed by independent metallurgical consultants, SGS Canada Inc., at its testing facilities in Lakefield, Ontario. The metallurgical testing was conducted as part of the ongoing Pre-Feasibility Study (\"PFS\") for Diablillos, and further complements the positive metallurgical results achieved for the JAC and Fantasma deposits, which were announced on June 1, 2023. Key takeaways from the PFS-level metallurgical test work include: Recovery rates at the Oculto deposit are expected to range between 82% - 86% for silver and 84% - 89% for gold.These results represent a significant increase over the average recovery rates of 73.5% for silver and 86% for gold used in the 2022 Preliminary Economic Assessment (“PEA”). A substantial percentage of the silver and gold at Oculto can be recovered by gravity separationwhich results in higher recovery rates and lower processing costs. Importantly, fine grinding is not necessary with the most efficient recoveries achieved at a grind size of 150 microns for both gravity and cyanidation and an optimal retention time of 36 hours. John Miniotis, President and CEO, commented, “These metallurgical results are extremely positive, and further raise the potential for a significant improvement in the project economics at our world-class Diablillos project. The ability to recover a substantial amount of gold and silver through the use of simple gravity separation offers major advantages, by increasing recovery rates and also lowering the overall processing costs. We look forward to incorporating these results into our updated Mineral Resource estimate and PFS, both of which remain on track to be delivered in the near-future.” Description of Metallurgical Test Work on Oculto Samples The latest program involved metallurgical testing of four composites from the Oculto deposit, including gravity separation testing and cyanidation of the gravity tailings for the recovery of gold and silver. The composite samples were selected f...