Business
Vizsla Silver Reports High Metallurgical Test Recoveries For Copala: 91% Silver And 94% Gold
VANCOUVER, BC, Aug. 16, 2023 /CNW/ - Vizsla Silver Corp. (TSXV: VZLA) (NYSE: VZLA) (Frankfurt: 0G3) ("Vizsla" or the "Company") announces positive preliminary m
About this update from Vizsla Silver Corp.
[{"type":"text","content":" VANCOUVER, BC, Aug. 16, 2023 /CNW/ - Vizsla Silver Corp. (TSXV: VZLA) (NYSE: VZLA) (Frankfurt: 0G3) (\"Vizsla\" or the \"Company\") announces positive preliminary metallurgical test results for the Copala Resource Area (\"Copala\") at its 100%-owned flagship Panuco silver-gold project (\"Panuco\" or the \"Project\") located in Mexico. \"Based on representative samples from Copala, the largest known structure in the Panuco district, we are pleased to report very high silver and gold recoveries,\" commented Michael Konnert, President & CEO of Vizsla Silver. \"This is a significant de-risking milestone for the Project and provides positive implications for the ongoing development of the Panuco district. Additionally, these results complement high silver and gold recoveries from the Napoleon and Tajitos resource areas using comparable grinding with both flotation and leaching methods independently. We intend to confirm through the next phase of metallurgical testing and additional flowsheet optimization that the mineralized material from all three primary zones, which make up the bulk of the current project resource base, is amenable to processing via the same flowsheet utilizing the same extraction circuits by testing the combination of flotation and cyanide leaching at both Napoleon and Tajitos.\" Testing Procedure The test program was designed and supervised by Ausenco Engineering Canada Inc. and completed by ALS Canada Ltd. out of Kamloops, BC. The testing procedure consisted of drill core being first crushed to -6 mesh and prepared into master composite test charges. A series of flotation tests were then conducted on the samples at primary grind sizes of between P80 70 to 150μm. Simple bulk flotation conditions were applied which included 18 g/t of PAX over 8 minutes of flotation time at natural pH. Precious metal recoveries to the concentrate ranged between 76 to 82% for gold and 78 to 85% for silver. Flotation concentrate and tails were both subsequently leached using sodium cyanide to maximize gold and silver extraction. Flotation concentrates were subject following varying levels of regrinding prior to bottle roll leach tests using a sodium cyanide concentration of 3000 ppm. Pre-aeration was applied by bottle rolling the prepared feed slurries with ambient air prior to adding cyanide. Flotation tail...