Antimony5 Mar 2026 08:12
Bailieston
On 3 July 2024, ECR announced that the Bailieston project's sampling uncovered high-grade antimony, with hole BH3DD019 hitting 32% Sb over 0.3m and BH3DD027 yielding 1.2% Sb over 0.1m. As a consequence, during the year we undertook a follow-up programme including diamond drilling to investigate these targets further.
In 2025, our geology team reviewed historical pXRF data from soil sampling campaigns conducted at the Bailieston Project between 2020 and 2022. Statistical analysis defined eight sub-populations of increasing antimony values. These were then spatially correlated with known mineralised vein systems, revealing four key antimony anomalies along the Hardup, Hardup South, Scanlons and Scoulars veins.
In 2025, to verify the soil sampling results, 72 rock chip samples were collected from oxidised, veined and sheared material within historical trenches and pits. Seven of these were in-situ channel samples taken across exposed mineralised structures.
The key rock chip sample results, announced on 14 April 2025, include:
● 0.3m @ 41.3 g/t Au, 0.89% Sb
● 0.5m @ 36.1 g/t Au, 0.48% Sb
● 0.31m @ 10.6 g/t Au, 1.13% Sb
● 0.8m @ 6.51 g/t Au, 0.19% Sb
These samples were all taken from the Hardup Reef, part of a north-northeast trending vein system that has seen limited modern exploration. Given the current commodity price environment, these high-grade zones represent compelling drill targets.
A four-hole diamond drilling programme followed and intersected gold and antimony mineralisation in two of the holes.
Hole BH3DD044 delivered promising results, intersecting a 1.6m mineralised zone from 133.0m, including 0.2m @ 3.86 g/t Au and 1.41% Sb from 133.5m, yielding a gold equivalent grade (AuEq) of 7.62 g/t at 133.5m (based on the prevailing A$3,500/oz gold and A$30,000/t antimony prices at the time, being late May 2025), and 0.3m @ 3.09 g/t Au from 133.7m, with visual confirmation of stibnite (antimony sulphide) throughout this interval. Additionally, a shallower intercept in BH3DD044 returned 0.2m @ 0.92 g/t Au from 61.3m.
Hole BH3DD046 intersected 0.15m @ 0.84 g/t Au and 1.62% Sb from 135.2m.