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Colibri Option Partner Announces Positive Results for Gold - Silver Bulk Sample Heap Leaching
Dieppe, New Brunswick--(Newsfile Corp. - August 23, 2023) - Colibri Resource Corporation (TSXV: C...
About this update from Colibri Resource Corporation
[{"type":"text","content":"Colibri Option Partner Announces Positive Results for Gold - Silver Bulk Sample Heap LeachingDieppe, New Brunswick--(Newsfile Corp. - August 23, 2023) - Colibri Resource Corporation (TSXV: CBI) (\"Colibri\" or the \"Company\") is pleased to report that its option partner Tocvan Ventures (CSE: TOC) has released results from the leaching process of its bulk sample of material at the Pilar Gold and Silver Project at the Pilar Project in Sonora, Mexico.Tocvan is in year 4 of a 5-year agreement to earn an initial 51% of Colibri's Pilar Gold & Silver Project. For full details of Colibri's agreement with Tocvan please see the Company's news release dated September 24th, 2019.Tocvan News Release: (August 22, 2023) - Brodie A. Sutherland, P.Geo. reports:HighlightsRecovery Results for Heap Leaching Match Regional Operating Mines; Head Grade Exceeds Expectations 62% Recovery of Gold Achieved Over 46-day Leaching Period Report Confirms with Increase in Irrigation Flowrate, Higher Recovery Can Be Achieved Head Grade Calculated at 1.9 g/t Au and 7 g/t Ag; Extracted Grade Calculated at 1.2 g/t Au and 3 g/t Ag Bulk Sample Only Included Coarse Fraction of Material (+3/4\" to +1/8\") Fine Fraction (-1/8\") Indicates Rapid Recovery with Agitated Leach Recap of Fine Fraction and Gravity Recovery Results Agitated Bottle Roll Test Returned Rapid and High Recovery Results: 80% Recovery of Gold and 94% Recovery of Silver after Rapid 24-hour Retention Time Gravity Recovery with Agitated Leach Results of Five Composite Samples Returned 95 to 99% Recovery of Gold 73 to 97% Recovery of Silver Includes the Recovery of 99% Au and 73% Ag from Drill Core Composite at 120-meter Depth Tocvan Ventures Corp. (the \"Company\") is pleased to provide results from a Bulk Sample completed at its Pilar gold-silver project Sonora, Mexico. Independent Qualified Professionals at LTM of Hermosillo have provided a final report after the completion of final analytical results. The report findings include a base of 62% recovery of gold and 47% recovery of silver. Head grade results were calculated by LTM as 1.9 g/t Au and 7 g/t Ag, with calculated recoverable metal extracted at 1.2 g/t Au and 3 g/t Ag. Importantly the report notes that the first 30 days of leaching was restricted by an erratic and low flowrate of cyanide leaching solution. This was corrected once identifie...