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QC Copper Reports Favourable Metallurgical Results, Confirms High-Quality Bulk Tonnage Concentrate to Come from the Opemiska Deposit
Toronto, Ontario--(Newsfile Corp. - July 25, 2023) - QC Copper and Gold Inc. (TSXV: QCCU) (OTCQB:...
About this update from Xxix Metal Corp.
[{"type":"text","content":"QC Copper Reports Favourable Metallurgical Results, Confirms High-Quality Bulk Tonnage Concentrate to Come from the Opemiska DepositToronto, Ontario--(Newsfile Corp. - July 25, 2023) - QC Copper and Gold Inc. (TSXV: QCCU) (OTCQB: QCCUF) (\"QC Copper\" or the \"Company\") is pleased to announce preliminary results from its metallurgical testing program on samples from the Opemiska Copper-Gold Deposit.Preliminary results from ongoing metallurgical studies indicate that recoveries of copper and gold on the Opemiska deposit mineralization are expected to be similar to the historical recoveries during mining operations between 1954 and 1991 despite a head grade for the open pit resource being much lower than the average grade mined underground, which results in lower recoveries. Results show copper recoveries between 94% and 90% and gold recoveries between 81% and 73%, depending on the cleaning stage. During mining, recoveries averaged 95% copper and at least 80%, and sometimes up to 90% recoveries for gold in a high-grade copper concentrate (25%-27% copper) with very few deleterious elements. Moreover, silver recoveries of the sample averaged between 79 and 71%, very similar to the gold recoveries. \"The reason gold recovery is so high in our proposed process that does not include cyanide leaching, is that much of the gold is found either as inclusions in chalcopyrite or as small grains attached to the mineral according to our QEMSCAN study. This allows the gold to float along with the chalcopyrite in the process leading to high gold and silver recoveries with little effort,\" said Charles Beaudry, Director, Vice President of Exploration for QC Copper and Qualified Person as defined in NI43-101.Technical Details of the Opemiska Metallurgical StudyAs part of the forthcoming updated mineral resource estimate, the Company commissioned SGS to study metallurgical and environmental samples from drill core from Opemiska Deposit. The Company's metallurgical program began in October 2022, and will be an ongoing process with the development of Opemiska. Copper flotation circuits are typically composed of two parts: the rougher cells, which focus on recovering the maximum of copper from the ore, and the cleaner cells, meant to remove impurities to maximize the grade of the resulting concentrate while maintaining as high a recovery as possible....