Laser ore sorting trial pays off

AN ORE sorting trial on a sample from a Western Australian gold project has led to a 150% upgrade of the sample, taking it from 0.78 grams per tonne gold to 1.2gpt.

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The flow sheet for the Apollo Hill ore sorting trial.

It also returned a gold recovery of up to 91.9% with only two ore sorting passes.

A 28% volume reduction was achieved, effectively ejecting a significant portion of waste rock and marginal material.