Critical Resources (ASX:CRR) builds multi commodity discovery pipeline at Halls Peak

Critical Resources has outlined a technical update across its Halls Peak Project in NSW, where new petrographic work at the Amoco prospect, high grade silver results at Gibsons, and advancing access at the Mayview antimony prospect collectively point to a growing multi commodity exploration pipeline spanning gold, antimony, silver and base metals.

The announcement centres on geological validation rather than resource conversion, but it sharpens the structural and mineralisation model across several prospects within the same district footprint.

Highlights

• Petrographic analysis of maiden drill samples at Amoco confirms a late stage shallow orogenic gold antimony silver system overprinting earlier VHMS mineralisation
• Amoco outcrop and float samples returned up to 17.9 g/t Au, 0.7% Sb and 53.2 g/t Ag
• Gibsons hosts an Inferred Mineral Resource of 840000 tonnes at 3.7% Zn, 1.5% Pb, 0.44% Cu, 30 g/t Ag and 0.1 g/t Au
• More than 130 Gibsons drill samples exceed 100 g/t Ag, with multiple intervals above 900 g/t Ag and peak values of 3780 g/t Ag, 1900 g/t Ag and 1750 g/t Ag
• Mayview surface sampling returned up to 52.3% Sb and 2.71 g/t Au, with land access discussions in progress

At Amoco, ten drill samples from the maiden program were examined petrographically and are described as quartz rich hydrothermal breccias and vein infill with replacement textures and sulphide zones up to about 20%.

Alteration assemblages include quartz sericite pyrite with local adularia, consistent with epithermal to mesothermal conditions.

Critical Resources states the system is analogous in style to the Hillgrove antimony gold deposits and the Enmore gold field, and notes that arsenopyrite, quartz textures and carbonate support a relatively shallow level orogenic gold affinity.

The technical interpretation is tied to structure, with re interpreted aeromagnetic data outlining major fault networks and NE SW mineralised trends described as conduits for hydrothermal activity.

Surface and float sampling results at Amoco include multiple double digit g/t gold values alongside antimony and silver, forming the geochemical basis for further drill targeting. As the company notes,

“the petrographic results indicate that Amoco is a substantial, district scale orogenic system with the right mineral chemistry, alteration, and fluid signatures for potential higher grade gold antimony mineralisation near surface and at depth.”

Gibsons provides the existing resource anchor within Halls Peak, with an 840000 tonne Inferred resource defined from 47 drill holes for 6921 m that remains open along strike and at depth.

The update emphasises stacked lodes and two silver styles, massive sulphide hosted silver linked to Zn Pb Cu lodes and black shale hosted silver where tetrahedrite is disseminated in altered shale.

Reported intercepts include 1.15 m at 3780 g/t Ag, 1.6 m at 1900 g/t Ag and 1.24 m at 1750 g/t Ag, with three of nine modelled horizons described as consistently carrying silver grades above 900 g/t Ag.

At Mayview, which sits adjacent to the Hillgrove antimony gold operations, mapping and rock chip sampling from historic workings returned antimony grades of 52.3%, 38.3% and 15.35% Sb, alongside gold up to 2.71 g/t.

The company is progressing landholder engagement with the aim of completing a low impact soil geochemistry survey across about 270 m of mapped workings once access is secured.

Taken together, the program outlines a district scale exploration strategy built on structural controls, multiple mineralisation styles and several commodity exposures within one project area.

The immediate direction is clearly exploration led, with further drilling at Amoco, step out and down dip testing at Gibsons, and early stage surface work at Mayview forming the next sequence of field activity across Halls Peak.

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