Pantera Minerals Limited (ASX: PFE) has reported further high-grade antimony, silver and base metal results from its Phase 2 exploration program at the company’s wholly-owned Gillham Project in southwest Arkansas, United States.
The latest assays continue to support Gillham’s standing as a high-priority U.S. critical minerals project, with rock chip sampling confirming strong antimony and polymetallic mineralisation across several prospects, including Stewart, May and Antimony Bluff.
Among the standout results, sample GR055 from the Stewart Prospect returned 63.8 g/t silver, 7.55 per cent antimony, 8.6 per cent zinc and 7.44 per cent lead.
At Stewart North, sample GR058 returned 19.2 per cent antimony, 12.25 g/t silver and 1.1 per cent lead.
Antimony Bluff delivered 15 per cent antimony from sample GR063, while the May Prospect produced 9.3 per cent antimony from sample GR072 and 4.9 per cent antimony from sample GR069.
The Phase 2 program has expanded and refined several mineralised trends across the project, reinforcing the link between surface geochemistry and the area’s extensive history of small-scale mining.
The work has also identified multiple priority targets now being considered for drill testing.
High-grade rock samples were obtained from previously identified antimony anomalies at the Stewart and May prospects, which extend approximately 400 metres and 500 metres respectively.
Both anomalies lie within a broader two-kilometre mineralised trend, a pattern that supports the potential for a district-scale antimony, silver and polymetallic system.
The Gillham Project spans roughly 5,000 acres across the Gillham East and Gillham West project areas and contains more than 18 historical antimony and silver workings.
Despite this long history of small-scale production, the district has never been tested using modern drilling techniques.
Barnaby Egerton-Warburton, Executive Chairman and CEO, commented: “Phase 2 exploration has further strengthened our confidence in the Gillham Project, with expanded antimony, silver, and base metal anomalism confirming the scale and continuity of multiple mineralised systems across the project area.
“The latest soil and rock-chip results have extended several priority target zones and identified new areas for follow-up exploration.
“The strong correlation between high-grade rock-chip results, extensive soil anomalies and historical workings continues to support the potential for significant mineralisation at depth.
“Importantly, the Phase 2 program has refined multiple high-priority drill targets as we advance toward our maiden drilling campaign, which we believe represents a significant value catalyst for the company.”
At the Stewart Prospect, historical records indicate that the Stewart Mine produced approximately 1,000 tonnes of stibnite from small-scale surface workings.
Recent sampling has elevated the prospect to a priority drill target, supported by coincident soil anomalism of up to 2,660ppm antimony along the broader Stewart and May trend.
At the May Prospect, the latest rock chip assays mark the first modern results obtained from the site, validating recent high-grade soil anomalies and upgrading the prospect to a high-priority drill target.
Follow-up mapping and sampling at Antimony Bluff also returned strong antimony grades, with additional soil sampling completed south of the prospect to evaluate further anomalous mineralisation beneath shallow cover.
Pantera’s immediate work program will focus on final target ranking, drill program design, and maiden drilling of priority antimony and polymetallic targets at the Davis, Stewart and May prospects, alongside continued evaluation of additional U.S.-based critical minerals opportunities.
