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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.

Noel Dyson
The flow sheet for the Apollo Hill ore sorting trial.

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....

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