Taylors Arm North Antimony

Trigg Minerals’ Taylors Arm North Antimony Project is a high-grade, underexplored asset in the New England Orogen of northern New South Wales.

The project encompasses a series of historic mining camps, including Taylors Arm, Mistake Creek, and Purgatory, which have recently produced antimony. Notably, the Testers Mine within the Mistake Creek camp features massive stibnite veins grading up to 63% Sb, representing Australia’s highest-recorded antimony grade.

(Image: Taylors Arm tenements with historical mineral occurrences and geology)

Geology and Mineralisation

The project area is underlain by Permian-aged metasediments of the Nambucca Beds in the north and Kempsey Beds in the south. These host rocks are intruded by quartz-stibnite breccia veins, indicative of a polymetallic system with potential for primary stibnite mineralisation or gold-antimony associations like the Hillgrove deposit.

Historical Mining and Workings

The Taylors Arm Project includes one granted tenement (EL 9668) and one exploration application (ELA 6802), covering over 100 historical workings across six mineral camps: Taylors Arm, Munga Creek, Toorooka, Pinnacles, Mistake Creek, and Purgatory. Many of these camps report high-grade breccia material with grades exceeding 25% Sb. Notable historical production includes:

Swallow Creek Mine: Extracted antimony from 1940 to 1955 at a concentration of 40% Sb; returned 30% Sb upon reopening in 1972.
Purgatory Mine: Produced 1,229 tonnes at a grade of 42.27% Sb between 1935 and 1954.

Despite the widespread nature of these antimony occurrences, exploration efforts have mainly focused on previously identified zones, with no modern, systematic exploration since at least the 1990s. Trigg aims to broaden its scope by exploring the potential for larger-scale deposits across these occurrences.

Tewinga Silver Deposit

Within the project area lies the Tewinga Silver Mine, which historically produced 3,471 ounces of silver from a 23.5-tonne bulk sample, yielding a silver grade of 147.7 oz/t (4,116 g/t Ag). This highlights the project’s significant potential for gold and silver mineralisation, with assay results of up to 24 g/t gold and 840 g/t silver across the Taylors Arm portfolio.

Exploration Potential

The Taylors Arm North Project offers compelling exploration potential, underpinned by its position along a major structural corridor. Historical workings, coupled with strong geochemical responses, indicate an evolving mineral system. Importantly, mineralisation remains open along strike and at depth, providing clear opportunity for new discoveries.

Future Outlook