Highlights
- Exceptional Recovery: Magnetic Resources reports a 97.5% gold recovery rate at its LJN4 project.
- Project Expansion: Drilling results indicate potential for expanding high-grade core zones.
- Cost Efficiency: Innovative processing techniques reduce operational costs.
Magnetic Resources NL (ASX:MAU) has achieved a significant milestone at its LJN4 project with a new record gold recovery rate of 97.5%. This figure comes from an optimized flotation circuit using a composite of diamond drill cores from deeper sections of the deposit, marking a significant jump from the previous 88% recovery achieved with traditional methods.
The success story extends into the geological layers of the deposit, particularly the deep altered ultramafic areas. Here, the high recovery rate coincides with promising drilling outcomes suggesting an expansion in potential resource sizes within the central and northern high-grade core zones. These zones are notably still open at depth, promising further exploration opportunities.
Despite the leap in recovery rates in specific sections, the overall average gold recovery across the LJN4 project maintains a robust figure at 92%. This demonstrates the project's consistent performance across various oxidation states.
In terms of process advancements, the initial successes of the two-stage flotation and fine grinding down to 20 microns are now being applied to other non-oxide composites. This change not only sustains gold recovery rates but also decreases the mass required from flotation, streamlining the process. As a result, a smaller fine grind mill is needed, which reduces both capital and operational costs significantly.
George Sakalidis, Managing Director of Magnetic Resources, expressed his satisfaction with the recent advancements, emphasizing the timeliness and effectiveness of integrating innovative techniques. “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," he noted. Sakalidis highlighted that these gains in recovery come at a particularly advantageous time as gold prices are strengthening.
The high recovery rates and the expanding resource potential underscore the company’s strategic approach to exploration and optimization. These efforts are set to significantly influence the upcoming designs and costing of the project’s process plant, which will incorporate the optimized flotation and fine grinding solutions.
The recent developments at Magnetic Resources not only highlight its technical prowess but also its capability to adapt and innovate in a dynamic market environment, positioning the company for sustained growth and efficiency in its operations.