Reports High Gold Recovery Rate from Namdini Project Metallurgy
- 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 an Indicated Mineral Resource of 6.5Moz of gold contained in 180Mt at 1.1 g/t Au at a cut-off of 0.5g/t Au and an Inferred Mineral Resource of 0.5Moz of gold contained in 13Mt @ 1.2 g/t Au at a cut off of 0.5 g/t Au.
The Company is focused on the development of the Namdini Project through advancing the Pre-Feasiblity study, supported by additional multi-disciplinary engineering activities.
Exploration programmes are also continuing at the Company's Bolgatanga (Northern Ghana) and Subranum (Southern Ghana) Projects.
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