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Artemis Gold Presents Initial 2020 Metallurgical Test Work Results Confirming Key PFS Assumptions for Blackwater DFS
All amounts are in Canadian Dollars unless otherwise noted VANCOUVER, BC, Dec. 7, 2020 /CNW/ - ARTEMIS GOLD INC. (TSXV: ARTG) ("Artemis" or the "Company") is pl
About this update from Artemis Gold Inc
[{"type":"text","content":" All amounts are in Canadian Dollars unless otherwise noted VANCOUVER, BC, Dec. 7, 2020 /CNW/ - ARTEMIS GOLD INC. (TSXV: ARTG) (\"Artemis\" or the \"Company\") is pleased to present key findings from ongoing metallurgical testwork conducted that further support the upcoming Definitive Feasibility Study (\"DFS\") for the company's Blackwater Gold Project in Central British Columbia, Canada (\"Blackwater\" or the \"Project\"). This latest campaign of test work continues to support the 93% life-of-mine (\"LOM\") gold recovery that was applied in the recently completed Pre-Feasibility Study (\"PFS\") dated August 26, 2020 entitled \"Blackwater Gold Project British Columbia NI 43-101 Technical Report on Pre-Feasibility Study\" filed on SEDAR by Artemis on September 18, 2020. In the PFS, various recommendations were made for complimentary metallurgical test work to support the DFS due for release in mid 2021. The PFS was largely based on a comprehensive, integrated metallurgical test work program carried out by the previous owner of the Blackwater Project during 2019. To support the DFS, Artemis initiated a follow up test work program with Base Metallurgical Laboratories Ltd. in September 2020 to further examine and optimize process parameters. Leach Extraction The 2019 test work, utilizing composite samples representing the first five years of mining, were used to further optimize the process parameters. In all, some 32 tests were carried out establishing optimal leach duration and recovery at a grind size of 150µm. Combined with gravity concentration, it was shown that, at the optimized conditions, leach + gravity recovery of >93% could be obtained, with average recovery being 94.6%. As a result, the flowsheet designed for the PFS included a gravity concentrate plant to treat a significant percentage of the ball mill discharge and an extended leach residence time with a pre-aeration step and CIP circuit. An additional 48 samples from throughout the deposit were also tested to investigate recovery variability using the standard PFS flowsheet (gravity concentration + gravity tailings leaching for 48 hours). The average value for gold recovery was 92.6% with the average recovery adversely impacted by six samples. Excluding these six samples, the average recovery of the remaining 42 samples was 94.9%. To further anal...