Dart Mining Unveils High-Grade Antimony and Gold at Coonambula
Dart Mining NL has reported impressive high-grade antimony, gold, and silver assays from its first diamond drill hole at the Coonambula project in Central Queensland, confirming historic mineralisation and setting the stage for further exploration.
- First drill hole CBADD001 returns up to 32.2% antimony and 5.61 g/t gold
- Significant intercepts include 5m at 4.33% Sb, 1.69 g/t Au, and 23.65 g/t Ag
- Drilling part of farm-in JV with Great Divide Mining at Coonambula project
- 458m drilled across six holes with assays pending from subsequent holes
- Plans underway for 3D modelling and potential JORC resource declaration
Strong Start at Coonambula
Dart Mining NL (ASX, DTM) has delivered a promising start to its exploration campaign at the Coonambula Antimony-Gold Project in Central Queensland. The company announced high-grade assay results from its first diamond drill hole, CBADD001, revealing significant concentrations of antimony, gold, and silver. These results not only validate historical mineralisation but also highlight the project's potential as a substantial antimony-gold-silver resource.
Highlight Intercepts and Geological Insights
The standout intercept from CBADD001 includes a 5-metre section averaging 4.33% antimony (Sb), 1.69 grams per tonne (g/t) gold (Au), and 23.65 g/t silver (Ag) starting at 41.5 metres depth. Within this interval, a narrow 0.65-metre zone boasts an exceptional 32.2% Sb and 2.91 g/t Au. Another notable zone includes 1.6 metres at 9.47% Sb and 0.35 g/t Au. The mineralisation is hosted in massive stibnite veins and quartz veins within altered granodiorite, consistent with historical drilling and surface sampling.
Farm-In Joint Venture and Ongoing Drilling
This drilling forms part of a farm-in joint venture with Great Divide Mining (ASX, GDM), under which Dart Mining is advancing exploration at the Banshee prospect within the Coonambula project. To date, Dart has completed 458 metres across six diamond drill holes, with assays from the first hole now received and further results expected by the end of November. The company plans to extend drilling to 2,000 metres in this initial program, aiming to delineate the extent and grade of mineralisation.
Strategic Next Steps
Dart Mining intends to refine its drill plan based on ongoing geophysical surveys and to develop a 3D geological model of the Banshee mineralisation. The ultimate goal is to define a JORC-compliant resource, which would mark a significant milestone for the project. The company is particularly interested in testing areas closer to the historic Banshee Mine, where previous mining produced high-grade antimony ore.
Regional Significance and Market Context
The Coonambula project sits within a geologically prospective region known for intrusion-related gold systems and antimony deposits, with nearby historical mines such as Lady Mary and Perseverance adding to the project's appeal. Antimony is a critical mineral with growing demand in battery technologies and flame retardants, making Dart Mining's progress noteworthy for investors watching supply-side developments.
Bottom Line?
With high-grade assays confirming the project's promise, Dart Mining's next drilling results will be pivotal in shaping Coonambula's future.
Questions in the middle?
- Will subsequent drill holes confirm the continuity and scale of high-grade antimony and gold mineralisation?
- How soon can Dart Mining advance towards a formal JORC resource estimate at Coonambula?
- What impact could Coonambula's development have on the regional antimony supply and Dart Mining's market valuation?
