Stellar Resources (ASX:SRZ) has received ore sorting results reinforcing “strong potential” for the Heemskirk Tin Project in Tasmania, with the group indicating ‘confidence’ in applying ore sorting at a plant scale.
The x-ray transmission ore sorting trial results demonstrate substantial tin recovery with excellent rejection of waste components including silica and sulphur, as well as provide clear justification for ore sorting as a fundamental flowsheet component within the Prefeasibility Study.
Stellar, which has a market capitalisation of $35.35 million, says the results also show the broader potential for improved resource utilisation, reduced environmental impact, and enhanced project economics through upfront beneficiation.
This news comes after Stella Resources presented at the Diggers & Dealers Mining Forum on day one of the event. Diggers & Dealers is a mining investment forum, held annually in Kalgoorlie, Western Australia. This year’s forum marks the 34th year of the event.
Mining.com.au is again attending the event with Executive Producer Shae Russell on the ground.
All four samples from the ore sorting trials delivered a 50% mass rejection and an 82.4% tin recovery to the high-grade product stream. The grade in the stream was 1.50% tin, which is a 1.6 times grade uplift to the average feed grade of 0.91% tin.
Meanwhile, a blended stream further increased the tin recovery to 97.2% while achieving a 21.2% mass rejection. The grade in the combined high and medium-grade streams was 1.13% tin, which is a 1.2 times uplift.
Managing Director Simon Taylor says these trials represent a step forward in de-risking the processing flowsheet for Heemskirk and confirm the scalability of previous testwork.
“The results not only reinforce the strong potential for meaningful uplift in head grade and reduction in costs at Heemskirk but also demonstrate that the well-established technology is applicable to the Queen Hill orebody with commercial scale potential and importantly, this data is now being incorporated into our ongoing Prefeasibility Study,” Taylor says.
“With two rigs continuing to provide critical inputs across our metallurgical and mining studies, we are steadily building the technical foundation to support a capital-efficient and robust development pathway for Heemskirk.”
Stellar Resources is an Australian tin-focused company that is aiming to become a global tin producer via its Heemskirk Project.
Write to Aaliyah Rogan at Mining.com.au
Images: Stellar Resources
