Uncertainty Remains as Amara’s Trojan Prospect Shows Early Antimony Potential

Deepest Drilling at Trojan Reveals Improving Antimony Grades

Amara Minerals (ASX:AM3) has delivered its most compelling assay results yet from the Trojan Prospect, part of its Lauriston Gold and Antimony Project in Victoria. Diamond hole AY2610, drilled to 200.9 metres, returned a 6.5-metre intercept averaging 0.86% antimony (Sb) and 0.59 grams per tonne (g/t) gold from 142.6 metres. Within this zone, narrower intervals reached up to 3.13% Sb and 1.59 g/t Au, signalling a mineralised system that appears to improve in grade at depth.

This intercept is the deepest reported at Trojan so far and builds on a consistent pattern: all six holes drilled at Trojan to date have yielded significant antimony mineralisation, underscoring the prospect’s continuity and scale. Assays are still pending for two additional holes, AY2611 and AY2612, which could further extend the known mineralised footprint.

A Growing Gold-Antimony Corridor in Victoria

The Trojan Prospect sits within a broader 2.2-kilometre soil anomaly stretching north to the Countess prospect, with drilling to date testing roughly 250 metres of this trend. The mineralisation style, featuring quartz veining with arsenopyrite-pyrite-stibnite sulphides hosted in west-dipping shears, bears geological hallmarks of epizonal gold-antimony systems seen at major Victorian deposits like Fosterville, Costerfield, and Sunday Creek. However, Amara cautions these analogies serve only as geological context and do not guarantee similar outcomes.

Victoria is home to Australia’s only producing antimony operation at Costerfield, a metal now listed on Australia’s Critical Minerals List and targeted by supply-chain policies in Australia, the US, and the EU. Amara plans to apply for a $1 million Victorian government grant aimed at advancing antimony projects, highlighting the strategic importance of this element in their portfolio.

Drilling Continues at Comet and Broader Lauriston Project

Alongside Trojan, Amara is actively drilling the Comet Prospect, where previous assays included high-grade antimony intercepts such as 0.89 metres at 2.24% Sb and 1.26 g/t Au. The ongoing program has completed over 3,500 metres of diamond core drilling across Comet, Yankee, and Trojan prospects, with further drilling planned after winter at Lauriston.

Future exploration will prioritise testing down-dip extensions of high-grade zones at Trojan, continuity of the Comet shear system, and step-out drilling along the 4.5-kilometre Comet-Trojan corridor. Amara is also integrating photon assay techniques to better detect coarse gold and refine structural interpretations.

Exploration Early Days but Potentially Strategic

While true widths of mineralisation remain unknown and the project is in early exploration stages, the consistent presence of antimony alongside gold, particularly in discrete shear-hosted shoots, suggests a significant epizonal system may be developing. Managing Director Ian Holland emphasised the encouraging results from a relatively small tested portion of the trend, calling for more extensive drilling to unlock the project’s potential.

Amara’s Lauriston Project, acquired in 2025, sits adjacent to the prolific Fosterville Mine and offers a structural setting comparable to Fosterville’s Swan Zone. Alongside its gold focus, Amara’s lithium holdings in Brazil position the company across multiple critical minerals, aligning with global energy transition demands.