Highlights

  • Channel sampling across ten trenches at Tanjil Dome has returned high-grade antimony and gold results, including intervals over 100 g/t gold equivalent.
  • Two distinct mineralisation styles have been identified: quartz vein-hosted mineralisation and disseminated to massive stibnite interpreted as hydrothermal replacement within intrusive units.
  • The geology shows broad similarities with aspects of the Sunday Creek gold-antimony deposit in Victoria, located approximately 100km away.
  • Results will guide further trench mapping and planning for a maiden drill program targeting; true widths and depth continuity remain to be established.

Infinity Mining Limited (ASX:IMI) is pleased to report highly encouraging gold and antimony assays from its initial channel sampling program at the Tanjil Dome prospect in Victoria, undertaken in joint venture with Mining One Consultants. The program comprised ten trenches across 62 channel intervals spanning 58.1 metres, targeting quartz veins and stibnite mineralisation within highly weathered intrusive rocks. The results have provided a compelling initial picture of the mineralised system and clear direction for follow-up exploration.

The company notes that channel sampling has only tested a small part of a broader gold and antimony soil anomaly spanning approximately one kilometre at Tanjil Dome. Continuous mineralisation across that full extent has not been established, and the results do not confirm a Mineral Resource or economic viability. However, the high surface grades and geological observations have created meaningful targets for the next phase of exploration.

Notable Assay Results and Sampling Details

Among the standout results from the sampling program, one trench interval returned an exceptionally high antimony grade with modest gold content, generating a gold equivalent figure in excess of 100 g/t. Other intervals of note include composite intersections with gold equivalent grades above 25 g/t over several metres. Gold-only intervals of approximately 1.3 g/t to 1.7 g/t gold over one to five metres were also recorded, reflecting the presence of gold mineralisation independently of antimony.

The gold equivalent calculation used for this program applies pricing and recovery assumptions for both gold and antimony, with antimony contributing the dominant proportion of the gold equivalent grade in the highest-grade composite. This calculation basis was disclosed in earlier Infinity Mining announcements and is consistent across the reporting. All interval grades are based on laboratory assay results rather than portable XRF readings.

Geological Context and Mineralisation Styles

Field mapping and geological logging have identified at least three discrete quartz-vein exposures within highly weathered, altered dyke material at Tanjil Dome. The Mining One Geology Manager noted two distinct styles of antimony mineralisation: quartz vein-hosted mineralisation with similarities to the Sunday Creek deposit approximately 100 kilometres away, and disseminated to massive stibnite interpreted as hydrothermal replacement within intrusive units. The recognition of replacement-style mineralisation is considered particularly promising, suggesting antimony mineralisation is not restricted to discrete veins.

The project lies within the Melbourne Zone of Victoria, a geological setting characterised by Sedimentary Rocks intruded by granitoids and dykes. The association of gold and antimony mineralisation within this intrusive framework is consistent with the broader Victorian gold province, which has historically yielded both orogenic gold systems and epithermal-style precious metal deposits.

Next Steps and Exploration Program

The joint venture plans to integrate the channel assay results with geological mapping, structural observations and earlier soil sampling data to refine follow-up exploration targets. Additional trenching along existing track footprints at Tanjil Dome and the Good Hope prospect is planned to test the broader distribution of mineralisation. Initial drill design and work plan submissions will be progressed, subject to obtaining the required access and regulatory approvals.

Infinity Mining's Chairman highlighted that the initial trenching has tested only a small portion of the broader soil anomaly, and that the assays have provided a clear focus for the next phase of exploration. While significant work remains to establish depth continuity and true widths of the mineralised zones, Tanjil Dome has emerged as a compelling priority within Infinity Mining's Victorian exploration portfolio.

Key Insights

The Tanjil Dome trench results represent an encouraging early stage outcome for the Infinity Mining and Mining One Consultants joint venture in Victoria. The identification of two distinct antimony mineralisation styles — quartz vein-hosted and hydrothermal replacement — broadens the potential scale and character of the mineralised system. Surface grades at select intervals are notably high, though depth continuity and true widths are yet to be established, making maiden drilling the critical next step. The geological similarity with the Sunday Creek gold-antimony deposit in the same state provides regional context for the exploration thesis. Investor interest will likely focus on when drill program approvals are obtained and what the first drill holes reveal about the system's depth extent and economic potential.