“This metallurgical test work has provided us with additional confidence in our ability to incorporate the Malartic H deposit into a potential Marban Alliance mine plan,” said O3 Mining’s CEO José Vizquerra.
The metallurgical tests included head characterization, comminution testing, gravity, cyanide leach testing, cyanide detox, oxygen uptake, solid/liquid separation, and rheology tests.
The gold recovery program tested the samples under a gravity-tail leach flowsheet, similar to the process in the Marban Alliance pre-feasibility study. A three-stage extended gravity gold test on the main composite from Malartic H showed a value of 59%.
Gold extraction from 10 samples ranged from 91.6% to 98.7%, averaging 92.9%, with an average head grade of 1.35 g/t, the company said.
The Malartic H deposit has a strike length of 950 metres, is 300 metres wide, and extends to a vertical depth of 500 metres. It is within 5 km of the…
