EL9934 Mt Edith: a low-sulphidation gold–antimony system drilled at the top and never at the roots

Every operator who drilled Mt Edith hit gold. None drilled below 150 metres. None drilled the antimony. And the two most competent — CRA in 1989 and Alphadale in 1997 — each wrote down the deeper test and left before running it.

That is the whole opportunity in three sentences. What follows is why we think it's real, and why it's still open.

What the historic record shows

The best hole on the property, ME52 (Alphadale, 1997), cut 14 m @ 1.26 g/t Au from 30 m — including 4 m @ 2.24 g/t and a 2 m interval at 2.92 g/t — and was still in gold-bearing rock at its 102 m end of hole. It was the only hole ever collared to test a structural target, and it returned the best result on the property. Every hole that reached the horizon found gold. The prospect has never been drilled to fail — it has been drilled shallow, vertical, and off-target.

Alongside the gold sits an antimony system worked in the 1950s — surface rock chips to 0.54 % Sb with 1.88 g/t Au and 33 g/t Ag, soils to 940 ppm Sb, and stibnite logged in core. Antimony is on the Critical Minerals List. It has never had a single hole designed to test it.

Why we think it goes deeper

The pathfinder chemistry in the one diamond hole tells a classic low-sulphidation story: gold concentrated in the top ~34 m, then the silver-to-gold ratio climbs sharply and antimony–arsenic strengthen all the way to the bottom of the hole (As to 4,900 ppm). That is a gold-rich cap telescoped over silver- and pathfinder-rich roots — the vertical signature that points down to a boiling/feeder zone. No hole on the prospect has passed 150 m. The target volume is entirely untested.

FIGURE 1 — plan + schematic cross-section: Mt Edith in plan and section. Nine historic collars cluster in the top 150 m of a gently dipping gold horizon; the boiling-zone textures that mark the top of an epithermal system are logged at surface. The volume below the 150 m drilling floor — where the silver and pathfinder chemistry says the system should concentrate — has never been drilled. Interpretive figure; not a JORC (2012) Mineral Resource, Ore Reserve or Exploration Target.

FIGURE 2 — DD88ME1 metal zonation with depth: Gold, the silver-to-gold ratio, and antimony–arsenic down the one diamond hole. Gold sits in the top ~34 m; below it Ag:Au and the Sb–As pathfinders rise — the chemical case that the system deepens toward an untested feeder. Per-metre data transcribed from the open-file CRA core log. Interpretive; not JORC-reportable.

What CAADIA has done

We pegged the ground ahead of the field, reconciled 40 years of open-file drilling, geochemistry and geophysics to a single grid, and defined a target set that tests the system from cheapest to most expensive — so a modest Year-1 programme can confirm or retire the shallow parts before anyone funds a deep hole.

If this reads like a system worth a second look

Everything above is drawn from open-file GSNSW data — DIGS and MinView — so you can pressure-test the thesis yourself before you talk to us. When you want the full picture — the target register with test and success/kill criteria, the drill-ready collar plan, the metallurgical and structural work, and the programme and budget — the Technical Synthesis is available under NDA.

CAADIA Metals identifies overlooked targets through systematic reinterpretation of historical open-file exploration data. This page reports historic exploration results and CAADIA's interpretation of them; it does not report a Mineral Resource, Ore Reserve or Exploration Target under the JORC Code (2012), and no economic mineralisation is implied. Historic results have not been verified by a Competent Person.