A 20,000-tonne bulk sample from the Croinor gold deposit in northwestern Quebec has proved to be higher-grade than had been modelled in resource drilling.
Operator South-Malartic Exploration (MSU-V) announced the bulk sample had an assayed head grade of 3.1 grams gold per tonne, 26% higher than had been expected.
South-Malartic had contracted to have the bulk sample processed at the Camflo mill of Richmont Mines (RIC-T). Camflo’s conventional cyanidation process recovered 97% of the gold, yielding 1,981 oz. South-Malartic sold the gold for $1.1 million.
The bulk sample had been taken on surface from four separate areas at Croinor, to give a representative result. South-Malartic’s resource model had indicated the sample should average 2.5 grams per tonne.
As frequently happens in Abitibi gold deposits, coarse gold was not representatively sampled by drilling and actual grades turned out to be higher.
Croinor, 70 km east of Val d’Or, has a resource in all categories of 3.1 million tonnes at an average grade of 3 grams gold per tonne. South-Malartic holds 75% and Huntington Exploration (HEI-V) holds the rest.
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