THE DRILL SERGEANT: Blackham Resources (ASX: BLK) has completed an initial Mineral Resource estimate for the historical tailings at the company’s Wiluna Gold Operations in Western Australia.
Blackham Resources said the tailings are all within 2km of the Wiluna processing plant and have added 620,000 ounces to the Wiluna free milling gold Mineral Resource base.
The maiden Mineral Resource for the Wiluna Tailings is 33.6 million tonnes at 0.57 grams per tonne gold with 77 per cent of the Mineral Resource classified under the JORC 2012 code as Indicated Resources.
Blackham explained that historical tailings have accumulated at the site since the 1930s and recent independent metallurgical test work has shown potential gold recoveries of between 42 to 50 per cent can be achieved through standard mining and gold leaching processes.
The company added that additional metallurgical test work will potentially enhance the gold recovery and validate how this material may supplement its operating plans.
“Blackham has successfully identified additional free milling ore associated with the Golden Age mineralisation and the Wiluna oxidised zones,” Blackham Resources said in its ASX announcement.
“The company also continues its exploration programs into its priority Lake Way targets and has now completed the first phase of drilling.
“This drilling is the first new drilling in that area for 12 years and the company is awaiting final results.”
Blackham intends to continue to add to its free-milling resource inventory at its Wiluna operations with a view to fully utilising its available assets.
Annual updated Mineral Resource estimates are currently underway for all areas at Wiluna and are expected to be reported in the current quarter.