Visible cobalt mineralization can be seen in the former Castle mine’s first level.
High grades continue as Canada Cobalt Works TSXV:CCW conducts underground bulk sampling at the past-producing Castle mine in eastern Ontario. A pulp assay on a 35-kilogram sample released March 16 showed 2.46% cobalt, 1% nickel and 6,173 g/t or 198.5 ounces per tonne silver.
A metallic screen fire assay on a 66-gram native silver sample not included in the previous assay brought “a head grade of 818,254 g/t (26,307 ounces per tonne),” Canada Cobalt stated. The samples were selective and not representative, the company emphasized.
Samples came from the historic mine’s first level, where rehab engineers have observed cobalt mineralization in the stopes, Canada Cobalt added. In operation off and on between 1917 and 1989, Castle’s underground workings extend through 11 levels totalling about 18 kilometres.
Last month the company reported two mini-bulk samples, with one assaying 2.47% cobalt, 23.4 g/t silver, 0.68% nickel and 1.83 g/t gold, and the other showing 0.91% cobalt and 460 g/t silver. That followed two mini-bulk samples of 3.124% and 1.036% cobalt released in December. The company also has assays pending from a 2,405-metre surface drill program conducted last summer.
As for the former Beaver mine in Ontario’s Cobalt camp 80 kilometres southeast of Castle, in December Canada Cobalt released three composite samples averaging 4.68% cobalt, 3.09% nickel and 46.9 g/t silver.
Canada Cobalt appointed Ron Molnar as an adviser on the company’s proprietary Re-2OX process for extracting cobalt and lithium from used Li-ion batteries. “Molnar has designed, built and operated over 60 pilot plant circuits extracting, separating and purifying a wide range of metallic elements from cobalt to rare earths,” the company stated.
Canada Cobalt also plans to build a 600-tpd gold processing facility to be financed by Granada Gold Mine TSXV:GGM, which holds a project near Rouyn-Noranda, Quebec. The two companies share overlapping management and directors.
Canada Cobalt closed a private placement of $1.03 million in January.