Infinity Mining (ASX:IMI) is progressing drill planning at the Tanjil Dome Project in Victoria after trench sampling returned up to 30.2% antimony at surface.
Under its joint venture with Mining One Consultants, Infinity tested 10 trenches comprising 62 channel intervals over 58.1m within a roughly 1km-long gold-antimony soil anomaly.
Trench TTD-002 returned 4.9m @ 0.48 grams per tonne gold (Au) and 7.71% antimony (Sb), or 26.92g/t gold equivalent (AuEq). That includes 1.2m @ 0.46g/t Au and 30.2% Sb for 104.06g/t AuEq.
Meanwhile, TTD-008 returned 0.6m @ 1.22g/t Au and 3.69% Sb (13.89g/t AuEq), and TTD-006 returned 5m @ 1.3g/t Au and 0.02% Sb (1.37g/t AuEq).
The gold-equivalent calculation assumes a gold price of US$4,000 ($5,824) an ounce, an antimony price of US$50/kg, and recoveries of 85% for gold and 75% for antimony.
No project-specific metallurgical test work exists. Notably, antimony contributes about 98% of the TTD-002 composite.
Mapping identified at least three quartz vein exposures within a weathered, altered dyke, along with stibnite replacement mineralisation.
The company says the geology shares broad similarities with Southern Cross Gold’s (ASX:SX2) Sunday Creek deposit, about 100km away.
Mining One Geology Manager Stuart Hutchin says the mapping and assays reveal two distinct styles of antimony mineralisation: quartz vein-hosted and hydrothermal replacement within intrusive units.
“The recognition of replacement-style mineralisation suggests that antimony mineralisation is not restricted to discrete quartz veins,” Hutchin adds.
Joint venture eyes maiden drilling
Having identified two distinct mineralisation styles at surface, the joint venture is now preparing to test the system at depth.
True widths and continuity remain unconfirmed, and the soil anomaly is a geochemical footprint only.
The joint venture plans to integrate the assays with mapping and earlier soil data to refine its targets.
Trenching along existing tracks at Tanjil Dome and Good Hope will continue as the company progresses drill design and work plan submissions, subject to access and approvals.
Infinity Chairman Cameron Petricevic says the initial trenching has tested only a small portion of the broader soil anomaly.
“We look forward to working with Mining One to refine targets for further trenching and maiden drilling,” Petricevic says.
Infinity Mining is an Australian mineral explorer with a portfolio of copper, gold, antimony, and lithium projects across New South Wales, Victoria, and Western Australia.
Write to JC Villarba at Mining.com.au
Images: Infinity Mining
