WA gold miner Empire Resources, on behalf of the Penny's Find Joint Venture (PFJV), has provided an update on its recently completed third toll treatment campaign at the Lakewood Mill located on the southern outskirts of Kalgoorlie Boulder, Western Australia.
This third campaign processed a total of 26,057 dry tonnes of ore at an average calculated head grade of 6.03g/t Au. Fifty six percent of the gold was recovered by gravity.
A 40% increase of gravity recovered gold compared to previous treatment campaigns confirms original test work, which showed an increasing percentage of free gold in the ore as it becomes fresher.
Significantly, the Lakewood mill operated to expectations given the higher grades (exceeding 10g/t Au on occasion) and the high quantities of gravity gold.
The strong performance was despite haulage and crushing processes being somewhat affected by inclement weather during the campaign which impacted tonnes milled.
Refined gold from the third campaign is being sold at an average price of over A$1,690 per ounce.
Fresh high-grade ore is continuing to be stockpiled at site in readiness for the next treatment campaign due in early April 2018.