SUMMARY
Very high-grade antimony (Sb) and silver (Ag) and strong gold (Au) assay results received as part of recently completed surface rockchip and soil sampling program at Antimony Ridge. Peak rockchip results include grab sample 730253: 49.8% Sb, 1,420 g/t Ag and 3.12 g/t Au (the highest grades recorded at Horse Heaven to date) and grab sample 730255: 10.35% Sb, 68.5 g/t Ag and 4.43 g/t Au. Peak soil results include Sample 931406: 0.5% Sb; and Sample 931242: 0.9g/t Au and 68g/t Ag.
These results support historical sampling which had delineated broad antimony-gold-silver mineralisation over significant widths at Antimony Ridge. The Horse Heaven Project is directly adjacent to Perpetua Resources’ large Stibnite Gold Project.
HIGHLIGHTS
- Rock samples comprising massive stibnite (an antimony sulphide mineral) were collected from a historical antimony mine located at the Antimony Ridge Target as part of a comprehensive historical data verification program. Subsequent assay results have returned grades of 49.8% Sb, 1,420g/t Ag and 3.12g/t Au.
- Soil sampling at Antimony Ridge helps define a NE-SW trending zone of Sb-Ag-Au mineralisation 1,000m x 700m, with assay results up to 0.5% Sb, 0.9g/t Au and 68g/t Ag from an area southwest of prior sampling.
- The Antimony Ridge mineralised footprint is materially larger than previously known as a result of the soil Sb-Ag-Au results.
- Possible additional parallel Sb-Ag-Au zones of mineralisation are also indicated by the soil Sb-Ag-Au results.
- Prior trench rockchip results, up to 5.9g/t Au, 19% Sb and 367g/t Ag are located centrally within this expanded NE-SW trending zone of Sb-Ag-Au mineralisation.
- Sb-Au-Ag mineralisation is exposed at surface along 500 metres of historical trenching where production of high-grade Antimony from small open pits was recorded during the periods of WWII, and into the early 1950s.
"We are very encouraged with the recent sampling program results from Antimony Ridge, which indicate that the mineralised target is larger than initially thought. As we expand outwards from the immediate area of the historic workings, we look to expand the target even further. Indeed, Horse Heaven is revealing itself to be a much larger opportunity as we conduct modern multi-disciplined exploration across the project area. It’s potential as a very significant antimony, gold, silver and tungsten project is crystalising."
