Magnetic Resources (ASX:MAU) Reports 97.5% Gold Recovery at LJN4
Metallurgical Results
Magnetic Resources NL reported a significant improvement in gold recovery at its LJN4 project. A new composite comprising diamond drill core from the deeper section of the deposit demonstrated a 97.5% recovery using the optimized flotation circuit. This marks a substantial increase from the 88% recovery achieved with conventional gravity/leach methods.
Recovery Enhancement in Deep Ultramafic
The exceptional 97.5% recovery in the deep altered ultramafic is particularly encouraging, given recent drilling results that indicate increasing potential resource sizes within the central and northern high-grade core zones, which remain open at depth. These findings align with the previous ASX release on 7 March 2025, highlighting outstanding intersections and ongoing exploration potential.
Overall Project Recovery
Despite the process optimization, the overall average gold recovery across the LJN4 project for all oxidation states remains robust at 92%.
Process Optimization and Cost Reduction
The initial success with two-stage flotation and fine grinding to 20 microns has been extended to other non-oxide composites. This process change maintains gold recovery while reducing the mass pulled from flotation. Consequently, the fine grind mill required will be much smaller, leading to reduced capital and operational expenditures.
Executive Comments
Managing Director George Sakalidis commented, “Another set of very pleasing results yet again reinforcing the value inherent in the Project. The exceptional 97.5% recovery in the deep ultramafic is very positive given the recent results showing potential increasing resource sizes within the central and northern high grade core zones that are still open at depth. The gains in recovery at a time of strengthening gold price, vindicates the speedy approach taken to adopt and incorporate new ideas when a benefit is visualized.
This work provides the confidence needed to complete the process plant design/costing incorporating the optimized flotation/fine grind solution.”
Motley Fool contributor Abbie Stokes has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.
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