Magnum Sets Drill Bit Turning on Brazil Rare Earths Hunt

Magnum Mining and Exploration (ASX: MGU) is preparing to kick off its first auger drilling campaign at the Azimuth 125 rare earths project in central Brazil, chasing what it believes could be significant ionic clay hosted mineralisation across a massive landholding.

Scheduled to commence in October, the program will test 19 high priority targets across Magnum’s 100 percent owned 1,201 square kilometre project area, which straddles the states of Minas Gerais and Goiás. The company’s focus is on identifying near surface rare earth deposits in ionic clays, a style of mineralisation known for its potential to deliver low cost and low impact extraction opportunities.

The targets were selected based on strong thorium radiometric signatures and favourable underlying geology. These thorium anomalies are telltale indicators of the weathered products of REE bearing rocks, which have been shown to host high value heavy rare earths such as dysprosium and terbium.

The Azimuth 125 project sits within the Az125 degree geological lineament, a region already emerging as a rare earths hotspot. The corridor hosts a growing cluster of discoveries, including Meteoric Resources’ Caldeira project and Appia’s PCH project, both of which have confirmed ionic adsorption clay rare earth deposits.

Magnum’s exploration methodology closely followed those examples. The company pegged its ground using regional geological data and radiometric survey results, homing in on signatures consistent with known mineralisation. Importantly, none of the identified targets have seen any historical exploration, highlighting the project’s greenfield potential.

Magnum’s in house exploration team, which boasts previous success in rare earth discoveries, will undertake the initial program. Each target will be drilled with a series of auger holes to determine the presence of rare earth mineralisation and identify the nature of the host lithologies.

The company says that access discussions with landholders are progressing and expects sampling to start promptly once logistical matters are finalised.

The broader Azimuth 125 project encompasses both ionic clay and hard rock REE targets and benefits from proximity to infrastructure, including roads and nearby cities such as Brasilia. The combination of scale, geology and favourable early data places Magnum in a competitive position in what is becoming a globally significant rare earths district.

With major players such as Fortescue Metals Group also active nearby, the region is attracting increasing attention from both the market and strategic end users. Should Magnum’s early work validate the presence of REE bearing clays, it could mark the start of a new chapter for the junior explorer in Brazil’s critical minerals push.