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Halo Prospect Discovery Raises Stakes for Tempest’s Yalgoo Iron Project Development

Mining By Maxwell Dee 3 min read

Tempest Minerals has identified a substantial new iron target, the Halo Prospect, near its Remorse magnetite deposit at Yalgoo. Historic samples show iron grades up to 62%, with promising magnetite and haematite mineralisation.

  • New iron target identified at Halo Prospect adjacent to Remorse Deposit
  • Historic rock chip samples up to 62% iron content
  • Potential for both magnetite and haematite mineralisation
  • Halo Target shares geological traits with Remorse Deposit
  • Future drilling and approvals underway to advance exploration
Image source middle. ©

A New Chapter in Yalgoo Iron Exploration

Tempest Minerals Ltd (ASX – TEM) has announced a significant development at its flagship Yalgoo Project in Western Australia with the identification of a new iron target, dubbed the Halo Prospect. Situated just 5 kilometres west of the already promising Remorse magnetite deposit, this discovery could add considerable scale and value to Tempest’s iron ore ambitions.

The Halo Prospect stands out due to its impressive historic rock chip samples, which have returned iron grades as high as 62%. These samples suggest the presence of both magnetite and haematite mineralisation, two iron ore types that can offer complementary processing and market opportunities. The geological setting of Halo mirrors that of the Remorse Deposit, which was discovered in 2024 and has already undergone initial drilling and resource estimation.

Geological and Strategic Significance

Recent fieldwork at Halo has mapped at least five parallel iron formation units extending over a strike length exceeding 5 kilometres, with aeromagnetic data indicating these formations could stretch up to 10 kilometres. The iron units exhibit varying magnetic responses, reinforcing the potential for diverse iron mineralisation. Notably, the outcrop thicknesses at Halo appear greater than those at Remorse, hinting at the possibility of a substantial deposit.

Strategically, the proximity of Halo to Remorse offers potential developmental synergies. Tempest has already advanced Remorse with a JORC-compliant Mineral Resource Estimate of 63.5 million tonnes at 30.6% iron and encouraging metallurgical testwork showing iron concentrates above 68%. Furthermore, a memorandum of understanding with Green Steel and Iron Pty Ltd signals plans for a multi-user iron facility nearby, which could streamline future processing and logistics for both deposits.

Next Steps and Market Implications

Tempest is progressing with detailed geological modelling, integrating legacy exploration data, and planning for the first phase of drilling at Halo, with approvals currently underway. While no new drilling or assay results have been reported yet, the company’s methodical approach and the promising historic data set the stage for a potentially transformative expansion of its iron ore portfolio.

Investors will be watching closely as Tempest moves from mapping and sampling towards drilling and resource definition. The success of Halo could not only enhance the scale of the Yalgoo Project but also strengthen Tempest’s position in a region hosting several high-profile iron and base metal projects.

Bottom Line?

Halo’s potential to complement Remorse could redefine Tempest’s iron ore prospects, drilling results will be pivotal.

Questions in the middle?

  • What will initial drilling reveal about the true size and grade of the Halo Prospect?
  • How might the development of the Green Steel facility impact the economics of Yalgoo’s iron projects?
  • Could Halo’s mixed magnetite-haematite mineralisation offer processing advantages or challenges?