Solstice’s Nanadie Drilling Reveals More Copper-Gold Beyond The Resource

Solstice Minerals has reported broad copper-gold intersections beyond Nanadie’s current resource boundary, including 64.1 metres at 0.94% copper and 91.4 metres at 0.97% copper. A spectacular silver interval adds intrigue, but its geometry and economic significance remain unresolved.

  • 64.1m at 0.94% copper and 0.23g/t gold in NANRCD014
  • 91.4m at 0.97% copper and 0.42g/t gold in NANRCD058
  • 7m at 1,019g/t silver, including 2m at 3,103g/t
  • Five diamond tails extended mineralisation beyond the current MRE
  • Assays pending from 13 diamond and more than 30 RC holes
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Five Diamond Tails Push Beyond Nanadie’s Resource Boundary

Solstice Minerals Limited (ASX:SLS) has added another substantial batch of copper-gold results outside the existing Mineral Resource Estimate at its 100%-owned Nanadie project in Western Australia. The strongest result came from NANRCD014, which returned 64.1 metres at 0.94% copper and 0.23 grams per tonne gold from 520.9 metres, including 23.7 metres at 1.49% copper and a six-metre zone at 2.26% copper.

The same hole also produced 54.8 metres at 0.83% copper and 0.30g/t gold from 453 metres. These are downhole lengths rather than confirmed true widths, and the company has not yet updated the resource estimate. Even so, the results extend the mineralised system beyond the current 40.4 million-tonne inferred MRE, which is graded at 0.4% copper and 0.1g/t gold.

The latest drilling builds on the 1.5km Nanadie strike extension, reported in late September after earlier drilling extended the system to at least 1.5 kilometres. Solstice says the eastern margin of the host gabbro is emerging as an important expansion target, with broad mineralisation appearing repeatedly along that contact.

Shallow Zone Adds Potential Mine-Planning Relevance

Results north of a local cross-fault provide a shallower complement to the deeper extensions. NANRCD058 extended an earlier RC intercept by 8.4 metres to produce a combined 91.4-metre interval at 0.97% copper and 0.42g/t gold from 143 metres, including 4.9 metres at 4.67% copper and 1.01g/t gold. Nearby NANRCD059 returned 25.4 metres at 1.00% copper and 0.15g/t gold from 450.6 metres.

Solstice says this eastern-side zone may influence future open-pit optimisation and early mine plans because the mineralisation is relatively shallow. That remains an exploration-stage proposition: the company has not reported mining studies, metallurgical results or an updated resource based on these holes.

Silver Discovery Requires Structural Follow-Up

NANRCD017 delivered another broad copper-gold result below the current MRE, including 60 metres at 0.59% copper and 0.18g/t gold, followed by 45.8 metres at 0.80% copper and 0.16g/t gold. The hole also encountered an unusually strong silver interval of seven metres at 1,019g/t silver, including two metres at 3,103g/t.

The silver is associated with a structural zone on the eastern gabbro contact. Solstice says similar elevated silver values have appeared around the cross-fault, but the geometry and significance of the silver-dominant mineralisation are not yet established. That uncertainty matters: a striking assay interval is not, by itself, evidence of a coherent or recoverable silver zone.

Three rigs are operating at Nanadie, with drilling planned to continue through the rest of 2026. Assays remain outstanding from 13 diamond holes and more than 30 RC holes, while the company is also using IP and downhole electromagnetic work to refine targets, including the conductor identified in the 140m DHEM target. Solstice reported $45 million in cash and no debt at 30 June 2026, giving it room to maintain the campaign, but the next meaningful test will be whether pending results confirm continuity, scale and workable widths rather than simply adding isolated high-grade intervals.

Bottom Line?

Nanadie is growing in both width and depth, but the investment case still depends on converting exploration intersections into a larger, better-defined resource with demonstrated metallurgy and mineability.

Questions in the middle?

  • Will pending assays confirm continuous copper-gold zones between the latest step-out and step-down holes?
  • How closely do the reported downhole lengths represent true mining widths?
  • Does the high-grade silver zone form a coherent, economically meaningful structure or remain a localised feature?

Sources

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