MGX Minerals Inc (CSE:MGX) (OTCMKTS:MGXMF) said Monday that bulk sampling from its Heino gold deposit assayed up to 63.6 grams per ton (g/t) gold, according to preliminary assay and metallurgy results.
Three samples from a single 150-kilogram bulk sample averaged 17.3 g/t gold and 20% recovery of gold by crushing and screen and up to 63.3 g/t gold with a 53% recovery by screening, according to a release.
“This is to be considered free gold recovery, prior to flotation or other extraction method,” the firm said in a statement.
READ: MGX Minerals says metallurgy studies for gold extraction from mineralized rock at Heino and Tillicum underway
Vancouver-based MGX is planning a series of bench scale flotation tests on the Heino composite to produce a bulk sulphide concentrate containing elevated levels of gold and silver, maximizing the recovery of the precious metals.
Five rougher kinetic tests on the composite are in the works to investigate reagent requirements and recovery as a function of primary grind size, according to MGX, as well as an open circle cleaner flotation test to look at the potential to produce high grade concentrates and evaluate the effect of regrinding.
In addition, a locked cycle test is budgeted to confirm metallurgical performance in closed circuit, as well as a series of graduated cylinder settling tests on flotation tailings.
Further metallurgical test results from Heino are expected within the week, MGX said. Preliminary metallurgy results for the East Ridge zone are under review and expected to be released shortly.
The Heino-Money project in British Columbia has had 100 surface holes drilled totaling 7,060 meters and nine underground holes totaling 177 meters. Heino-Money was active between 1981 and 1993 and produced around 5,800 tons of gold and silver ore.
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