Barton Gold (ASX:BGD) has reported new ‘high-grade’ silver and gold assays from its 3,677m drilling program at the Tolmer Silver discovery in South Australia.
Recent reverse circulation drilling has extended the western silver zone strike to over 500m while infilling the eastern gold zone with broad, ‘high-grade’ intersections.
Key assays include 10m @ 399 grams per tonne silver (Ag) and 0.55g/t gold (Au) from 56m in hole TBM0258, including 4m @ 954g/t Ag and 1.23g/t Au from 56m.
Meanwhile, hole TBM0259 returned 16m @ 493g/t Ag and 0.66g/t Au from 50m, including 3m @ 1,706g/t Ag and 2m @ 2.2g/t Au from 59m.
The eastern gold zone delivered 16m @ 3.74g/t Au and 15.1g/t Ag from 57m in TBM0289, including 1m @ 28.9g/t Au and 61g/t Ag from 58m. TBM0290 intersected 8m @ 9.34g/t Au and 13.6g/t Ag from 90m, including 2m @ 28.9g/t Au and 33.5g/t Ag from 93m.
Managing Director Alexander Scanlon says the discovery “continues to yield broad, high-grade silver assays across an expanding footprint”.
“With a shallow profile and having produced trial concentrates grading over 100,000g/t Ag, Tolmer is already hinting at real potential for a low-cost, high-margin operation,” Scanlon says.
Barton announced one of Australia’s ‘highest-grade’ modern silver discoveries at Tolmer in March 2025, with peak grades up to 17,600g/t Ag and 51.2g/t Au.
The company will now focus on structural interpretation and metallurgical analysis to inform modelling, follow-up drilling design, and early views on potential mining methods.
Barton holds 2.2 million ounces (Moz) Au and 3.1Moz Ag in JORC mineral resources across its South Australian portfolio.
Barton Gold is a South Australia-focused developer advancing the Tunkillia, Tarcoola, and Central Gawler Mill precious metals projects.
Write to JC Villarba at Mining.com.au
Images: Barton Gold
