NEW BRUNSWICK — Stratabound Minerals of Calgary says that recent metallurgical tests on samples from its Captain copper-cobalt deposit in the Bathurst Mining Camp indicate that high recoveries of both metals can be expected using flotation.
The tests were carried out by RPC Science and Engineering of Fredericton, NB. The work included mineralogical examination, flotation tests and leaching tests of the copper-cobalt and the cobalt zones.
Flotation of the copper-cobalt zone material produced a 28% Cu concentrate and a copper recovery rate of 94%. A pyritic cobalt concentrate grading 0.12% Co with a recovery rate of 80% was also produced. A separate zinc concentrate could be produced, but a final grade and recovery rate cannot be determined without further testing.
Flotation tests of material from the cobalt zone resulted in a copper concentrate grading 27% Cu and a recovery rate of 98%. The pyritic cobalt concentrate from these tests had a grade of 0.46% Co and a cobalt recovery of 91%. The concentrate was then roasted and leached in an autoclave to extract 99.5% of the cobalt from it.
Stratabound previously reported a 43-101 resource estimate of 861,000 tonnes in the measured and indicated categories grading 1.10% Cu, 0.052% Co and 0.22 g/t Au (containing 20,879,767 lb of copper, 987,044 lb of cobalt, and 6,090 oz of gold), plus 681,000 tonnes in the inferred category grading 0.60% Cu, 0.039% Co and 0.12 g/t Au (containing 9,007,996 lb of copper, 585,520 lb of cobalt, and 2,627 oz of gold).
Photos of drill core from the Captain deposit are posted at www.Stratabound.com.