THE DRILL SERGEANT: Musgrave Minerals (ASX: MGV) completed initial metallurgical test work at the Break of Day prospect on the Cue Project in the Murchison region of Western Australia.
Musgrave Minerals is in Joint Venture at the Cue Project with Silver Lake Resources (ASX: SLR) and is taking its current 60 per cent interest in the project to 80 per cent.
Musgrave explained that three composite fresh rock samples were collected from nine representative drill holes across the strike of the gold lodes at Break of Day that were representative of the various gold lodes, ore types and feed grades for potential future mining and processing activities.
These samples were composited from reverse circulation RC drill samples recently completed at the prospect.
Musgrave said the results had confirmed gold recoveries utilising conventional gravity and cyanide techniques.
The test work demonstrated very rapid leaching kinetics for all three samples and overall recovery of between 95.7 per cent and 96.3 per cent (average 96 per cent to produce a maximum leaching of gold after the first eight hours.
In addition, exceptionally high gravity recoveries of between 80.8 per cent and 86.1 per cent (average 84.2 per cent) were achieved from a single pass through the Knelson concentrator.
Musgrave claimed the gravity recoveries to be very high in comparison to typical Yilgarn gold ores.
“This is an excellent result at Break of Day and will enable the Company to assess multiple processing options going forward,” Musgrave Minerals managing director Rob Waugh said in the company’s announcement to the Australian Securities Exchange.
“The exceptionally high gravity recovery will enable flexible processing and potentially reduce capital and operating costs.”
Musgrave Minerals indicated there is further metallurgical test work currently being planned for the Lena gold deposit with samples to be provided from the current RC drill program.