- 99% gold recovered from oxide samples
- 95% gold recovered from transition samples
- 84% gold recovered from fresh samples
- These high gold recovery rates indicate favourable metallurgy
The primary purpose of the cyanide leach test work was to establish what level of gold could be recovered by a simple cyanidation leach process.
Each sample selected was thoroughly mixed by passing the entire sample three times through the riffle splitter, then splitting off a ~2.0 kg sample.
The samples were weighed, labelled and bagged individually and sent to the SGS Laboratory, Ouagadougou, Burkina Faso for Bottle Roll (BLEG) cyanide leach tests. Each entire sample was pulverised to a fineness with 91% passing through a 75 micron mesh. Each sample was assayed by Fire Assay in triplicate by the FAA505 method.
A 2,000 gm pulverised sample was then bottle rolled for 24 hours in a cyanide mixture and compared with the fire assays to obtain estimates of recoveries.
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About Cardinal Resources Ltd
The Company’s Namdini Project has a declared Indicated Mineral Resource of 120 Mt @ 1.1 g/t for 4.3 Moz Au and an Inferred Mineral Resource of 84 Mt @ 1.2 g/t for 3.1 Moz (refer to Cardinal “Technical Report on Namdini” dated 11 September 2017). The Company is focused on the development of the Namdini Project through a resource expansion drilling programme and continues to advance the PEA / Scoping Study which is now due for release in Q1 2018. In parallel, a pre-feasibility study is progressing supported by additional multi-disciplinary engineering activities. Exploration activity is also underway on its large portfolio of regional exploration Licenses.
For more information on the Company, Investors should review the Company’s filings that are available at http://www.sedar.com
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