St George Mining Limited Launches Advanced Geophysical Program to Unlock High-Grade Rare Earth and Niobium Resources in Brazil

Wednesday, July 2, 2025
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9:05 am
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St George Mining Limited has launched advanced geophysical surveys at its Araxá project in Brazil. High-resolution drone magnetics and seismic techniques will refine drilling targets and potentially boost rare earth and niobium resources. Assay results are expected soon, promising further exploration upside for investors entering the market.

St George Mining Limited has initiated an advanced geophysical program at its Araxá Niobium and Rare Earth Project in Brazil. The company is employing a range of cutting‐edge techniques to identify enriched mineralisation zones and structural controls that underpin the deposit. A high-resolution airborne magnetic survey is underway using drone-mounted sensors set on 25‐meter line spacing over 270 flight kilometres. In parallel, LiDAR mapping is being conducted to create accurate digital elevation models, while an HVSR passive seismic survey on a systematic 50m by 50m grid will soon provide critical depth data on fresh basement rock and weathering profiles. The integrated approach combines geophysical datasets with ongoing drilling—a 16-week campaign exceeding 10,000 metres of auger, reverse circulation, and diamond drilling. Historical drilling results have already revealed high-grade intercepts, such as 20 metres at 2.4% Nb2O5 and 60 metres at 11.1% TREO from surface. The maiden JORC compliant Mineral Resource Estimate remains open in all directions with less than 10% of the area effectively tested, highlighting significant potential for resource expansion. Technical indicators also include documented drill intercepts showing up to 8% Nb2O5 and 33% TREO, which further support the project’s promising outlook. This multi-dimensional exploration strategy integrates high-resolution drone magnetics, LiDAR, and passive seismic surveys with direct geological drilling, aiming to refine the geological model and improve drill targeting. The dataset will delineate structural corridors, lithological boundaries, and alteration zones, all of which are crucial in predicting the lateral and depth extent of the mineralisation. The project’s resource figures—41.2 million tonnes at 0.68% Nb2O5 and 40.6 million tonnes at 4.13% TREO—underscore its globally significant potential, especially given its proximity to established niobium mining operations and supportive local infrastructure. Market sentiment appears cautiously positive. On the bullish side, the deployment of innovative geophysical techniques combined with robust historical and ongoing drilling results could unlock substantial additional value for the project. This integrated strategy enhances confidence in further increasing the resource base and converting more of the inferred resource into higher confidence categories. However, a bearish perspective might point to the inherent risks of exploration projects, including the uncertainties tied to forward-looking statements and the complexities of accurately modeling an open, multi-directional resource. Despite these challenges, industry observers note that the technical advancement and potential scale underpin a resilient long-term outlook for the project.

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