Legend Mining Identifies Gold Targets at Pyrophyllite Hill with IP Anomaly
Legend Mining has pinpointed anomalous gold mineralisation aligned with a major induced polarisation anomaly at Pyrophyllite Hill within its Pinnacle Well Project, advancing plans for drill testing pending heritage approvals.
- Rockchip samples up to 0.18g/t Au coincide with strong IP chargeable-resistive feature
- Extensive hydrothermal alteration confirms a large gold-prospective system
- Drill design underway following heritage survey submissions
- Alpha North shows partial correlation between quartz veins and IP anomalies
- Pinnacle Well Project covers 128km2 near Leonora, WA
Gold Anomalies Align with Geophysical Targets at Pyrophyllite Hill
Legend Mining (ASX:LEG) has bolstered the gold prospectivity of its Pinnacle Well Project with new rockchip sampling results at Pyrophyllite Hill that coincide with a pronounced induced polarisation (IP) chargeable-resistive anomaly. The highest assay returned 0.18 grams per tonne (g/t) gold, complementing a ~600-metre strike length IP feature interpreted to represent sulphide mineralisation at roughly 75 metres depth.
These gold values, though modest, are significant given they are associated with intense quartz-chlorite-siderite-magnetite alteration, hallmarks of a large hydrothermal system with potential for deeper gold mineralisation. The alteration intensity increases toward the IP anomaly, suggesting proximity to a mineralising source. This aligns with the presence of an inner zone of higher temperature alteration within an extensive pyrophyllite envelope, a pattern consistent with intrusion-related orogenic gold systems common in the Yilgarn Craton.
Drill Plans Progress Amid Heritage Survey Delays
Legend’s Executive Chair Mark Wilson emphasised the compelling nature of the target, noting the combination of geophysical and geological indicators alongside proximity to the regionally significant Keith-Kilkenny Fault Zone. The company has submitted heritage survey requests to the Native Title party and awaits scheduling details before drilling can commence.
The upcoming drill programme aims to test the chargeable-resistive IP feature at Pyrophyllite Hill, with final drillhole designs integrating recent geological reconnaissance, soil geochemistry, and geophysical modelling. Heritage clearance surveys are tentatively planned for the September quarter, with drilling contingent on approvals.
Alpha North Shows Mixed Quartz Vein and IP Correlation
At the Alpha North prospect, reconnaissance work has revealed a more complex relationship between quartz veining and IP chargeability. Some large quartz veins correspond with chargeable features interpreted as sulphides at depth, while others do not, highlighting the need for targeted drillhole design. Historic rockchip samples at Alpha North have shown high-grade gold up to 91.9g/t, underscoring the prospect’s potential.
Alpha North’s PDIP survey identified a 700-metre strike length chargeable and resistive anomaly, with drillhole plans focusing on quartz veins that coincide with these geophysical features and previously elevated gold assay results. This nuanced targeting approach aims to maximise the chance of intersecting economically significant mineralisation.
Pinnacle Well Project Positioned in a Proven Gold District
Covering 128 square kilometres about 25 kilometres north-northeast of Leonora in Western Australia, the Pinnacle Well Project sits in a prolific gold province hosting major deposits such as Gwalia and King of the Hills. Legend acquired the tenements in 2025 and holds a right of first refusal over adjacent ground, positioning it well for consolidation and exploration upside.
The project’s targets are typical of intrusion-related and structurally controlled gold mineralisation within Archaean greenstone belts, with secondary potential for base metals. The current work builds on previous geophysical surveys and soil geochemistry, reinforcing the strategic rationale for advancing to drilling.
Bottom Line?
With heritage surveys pending, Legend’s next steps hinge on timely approvals to drill test a geophysically defined gold system that could reshape Pinnacle Well’s exploration narrative.
Questions in the middle?
- Will drilling confirm the depth and grade continuity of the IP anomaly at Pyrophyllite Hill?
- How might the mixed correlation between quartz veins and chargeability at Alpha North influence targeting strategies?
- What timeline can be expected for heritage survey completion and subsequent drill approvals?
