Sanu Gold Announces Positive Cyanide Leach Test Results at the Bantabaye Permit in Guinea, West Africa: 92 to 93% Average Gold Recovery
- Positive initial cyanide leach test results indicate the potential for good gold recoveries at Bantabaye.
- Comparable recoveries from oxidized and unoxidized material, as well as from felsic and mafic host rock, show promising signs for future gold recovery.
- Future metallurgical test work is planned to include grindability and bottle roll testing, providing an initial indication on crushing and milling power requirements, gold leaching kinetics, and key reagent consumptions.
- No negative points to highlight.
Vancouver, British Columbia--(Newsfile Corp. - November 16, 2023) - Sanu Gold Corporation (CSE: SANU) (OTCQB: SNGCF) ("Sanu Gold" or the "Company") is pleased to announce positive initial cyanide leach test results from the Company's flagship Bantabaye gold exploration permit ("Bantabaye" or the "Permit") in Guinea, West Africa. The Permit, which lies on the western margin of Guinea's prolific Siguiri Basin, is located approximately 50 kilometres ("km") south of the multi-million ounce Lefa Gold Mine and 80 km north of the multi-million ounce Bankan Gold Project.
Highlights:
- Initial cyanide leach test work (the "Test Work") was undertaken on representative samples from the main mineralized rock types drilled in the Company's inaugural H1/2023 drill program,
- The Test Work returned average gold recoveries of 92 to
93% from the three rock types tested, including:93% average recovery from unoxidized mafic rock (range: 91 to96% ),92% average recovery from unoxidized felsic rock (range: 84 to95% ),92% average recovery from oxidized felsic rock (range: 86 to97% ; Table 1),
- Results demonstrate highly favorable gold recoveries may be achieved with cyanide leaching.
Martin Pawlitschek, President and CEO commented: "At our flagship project in Guinea, West Africa, initial cyanide leach test work from the three main mineralized rock types drilled in the Company's inaugural H1/2023 drill program has returned very encouraging results, highlighting the potential for good gold recoveries by conventional crush-grind-cyanide leaching processes at Bantabaye. Oxidized and fresh rock types from the main mineralized zones drilled to date have returned average gold recoveries of 92 to
Program Summary
The primary objective of the Test Work was to assess potential gold recovery by cyanide leaching for gold mineralization discovered to date at Bantabaye. Material for testing was collected from reverse circulation ("RC") drill chip rejects from the Company's H1/2023 Phase 1 RC drill program at Bantabaye, which consisted of 3,198 metres ("m") drilled in 28 RC drill holes. Results from the Phase 1 RC drill program included 11.4 g/t Au1 over 15 m, including 41.2 g/t Au over 4 m (BANT-RC-002).
A total of 101 samples encompassing a wide range of gold grades, downhole depths, lithology and intensity of weathering/oxidation state in the three main mineralized rock types drilled were analyzed. Test Work procedures are summarized below.
Table 1 summarizes the grades and recoveries for each of the three mineralized rock types tested. Results from the Test Work indicate comparable recoveries from oxidized and unoxidized material, as well as from felsic and mafic host rock. No direct correlation was observed between gold grade and recovery.
Table 1. Summary of initial Test Work at Bantabaye.
| Lithology | Oxidation State | Sulphides1 | Minimum Grade (g/t Au) | Maximum Grade (g/t Au) | Average Grade (g/t Au) | Minimum Recovery (%) | Maximum Recovery (%) | Average Recovery (%) | Number of Samples |
| Mafic | Unoxidized | py, aspy | 2.73 | 114 | 52.2 | 91 | 96 | 93 | 3 |
| Felsic | Unoxidized | py, aspy | 0.35 | 5.24 | 1.46 | 84 | 95 | 92 | 28 |
| Felsic | Oxidized | N/A | 0.08 | 4.56 | 0.97 | 86 | 97 | 92 | 70 |
1 N/A = not applicable, py = pyrite, aspy - arsenopyrite.
Next Steps
Future metallurgical test work is planned to include grindability and bottle roll testing, to provide an initial indication on crushing and milling power requirements, gold leaching kinetics, and key reagent consumptions.
Test Work Procedures
Samples were submitted to the SGS Laboratory in Bamako, Mail ("SGS Mali") and analyzed for Fire Assay FAA505 and subsequently shipped to the SGS Laboratory in Ouagadougou, Burkina Faso ("SGS Burkina Faso") for LeachWell (LWL69M) analysis on 2-kilogram splits and Fire Assay FAA505 on the tails to determine gold recovery. Leachwell tests were undertaken at a grind size of
Both SGS Mali and SGS Burkina Faso are internationally recognized and commercially certified laboratories and are independent of Sanu Gold.
Quality Assurance / Quality Control ("QA/QC")
Sampling was completed following industry best practices, conducted under the supervision of the Company's project geologists and the chain of custody from the project to the sample preparation facility was continuously monitored. An appropriate number and type of certified reference materials (standards) and blanks totaling
Qualified Person
The scientific and technical information contained in this press release has been reviewed and approved by Serigne Dieng, Ph.D., M.Sc., a Member (MAIG) of the Australian Institute of Geoscientists (AIG), Exploration Manager of the Company and a qualified person within the meaning of National Instrument 43-101 - Standards of Disclosure for Mineral Projects.
About Sanu Gold
Sanu Gold is a publicly traded exploration company focused on a portfolio of highly prospective gold projects in Guinea, West Africa's Siguiri Basin.
West Africa is the number one gold mining region in the world and Guinea's Siguiri Basin is a prolific, yet underexplored part of this region. Despite being home to both long-lived multi-million ounce gold mines and recently commissioned gold mines, Guinea's Siguiri Basin continues to produce important new gold discoveries.
Sanu Gold has defined multi-kilometer long gold-bearing structures on each of its three exploration permits and is targeting near-surface multi-million ounce gold discoveries. Initial drill programs on the first two permits drilled have yielded high-grade gold discoveries. The company is operated by a highly experienced team, with successful records of discovery, resource development and mine permitting across West Africa.
Martin Pawlitschek
President & CEO, Sanu Gold Corp.
For further information regarding Sanu Gold, please visit the Company's website at www.sanugoldcorp.com or contact:
Fiona Childe, Ph.D. P.Geo.
VP, Corporate Development & Communications
Sanu Gold Corp.
+1 647-473-7268
info@sanugoldcorp.com
Neither the Canadian Securities Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release.
Cautionary Note Regarding Forward-Looking Statements
This news release contains certain statements that may be deemed "forward-looking statements" with respect to the Company within the meaning of applicable securities laws. Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words "expects", "plans", "anticipates", "believes", "intends", "estimates", "projects", "potential", "indicates", "opportunity", "possible" and similar expressions, or that events or conditions "will", "would", "may", "could" or "should" occur. Although Sanu Gold believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance, are subject to risks and uncertainties, and actual results or realities may differ materially from those in the forward-looking statements. Such material risks and uncertainties include, but are not limited to, the Company's plans for exploration on its properties and ability to execute on plans, ability to raise sufficient capital to fund its obligations under its property agreements going forward, ability to maintain its material property agreements, mineral tenures and concessions in good standing, to explore and develop its projects; changes in economic conditions or financial markets; the inherent hazards associated with mineral exploration and mining operations, future prices of gold and other metals, changes in general economic conditions and local risks in the jurisdiction (Guinea) in which it operates, accuracy of mineral resource and reserve estimates, the potential for new discoveries, the ability of the Company to obtain the necessary permits and consents required to explore, drill and develop the projects and if obtained, to obtain such permits and consents in a timely fashion relative to the Company's plans and business objectives for the projects; the general ability of the Company to monetize its mineral resources; and changes in environmental and other laws or regulations that could have an impact on the Company's operations, compliance with environmental laws and regulations, dependence on key management personnel and general competition in the mining industry. Forward-looking statements are based on the reasonable beliefs, estimates and opinions of the Company's management on the date the statements are made. Except as required by law, the Company undertakes no obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.
1 grams of gold per tonne ("g/t Au"); metres ("m"); "); see Sanu Gold news releases dated May 17 and July 27, 2023 for additional information.
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/187586
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