Latest Mineral Resource Estimation News

PC Gold’s Spring Hill project emerged from FY2026 with a sharply larger resource, fresh institutional funding and a clearer path towards feasibility studies. The gold explorer remains pre-production and loss-making, but its post-year-end A$75 million raise gives it substantial room to expand drilling and development work.

Power Minerals has outlined a maiden conceptual Exploration Target of 9.2 million to 10.7 million tonnes at Morro do Ferro in Brazil, grading 7.8% to 9.2% TREO. The result gives the ongoing drilling program a clearer target, but 43% of the upper estimate comes from an untested projected extension and nine recent holes remain unassayed.

GBM Resources has returned a broad 101-metre gold intersection at 2.63g/t from Lone Sister, with higher-grade intervals pointing to potential local grade uplift at Twin Hills. A further 8,400 metres of assays remain pending before the planned December-quarter resource update.

Avira Resources is remobilising its RC rig to resume a 4,500-metre drilling program at Mt Cattlin, with first-pass holes planned at the historically high-grade Sirdar and Ellendale prospects. The next phase follows strong results from Maori Queen and Plantagenet, but the key test will be whether historical grades translate into repeatable mineralisation under Avira’s drilling.

Alma Metals has intersected 383.8 metres at 0.25% copper from just 10.2 metres at its Briggs project, including a higher-grade 76.7-metre zone at 0.34%. The result supports the company’s effort to upgrade parts of the resource ahead of a pre-feasibility study, although the intersection remains a downhole measurement and ended in mineralisation.

Five of nine diamond holes at Minrex's Barje deposit have returned the widest and highest-grade intersections drilled there, challenging the historical model of a low-grade central corridor. The results arrive ahead of a maiden JORC resource estimate planned for next quarter.

Magnum Mining has completed a 10,000-metre auger programme at its Piracanjuba North ionic adsorption clay rare earths project in Brazil, shifting its focus to a 32.5km² plateau zone. The company is targeting a maiden JORC 2012 Mineral Resource Estimate in November, but the project remains at an early exploration stage with no declared resource or reserve.

Cannindah Resources has reported preliminary NovaCell testwork recovering 94% of copper and 92% of silver at a substantially coarser grind, while rejecting 82% of processed material. The results could support a higher-throughput, lower-energy processing route, although gold recovery and concentrate quality still require further work.

Canterbury Resources has reported a broad copper-molybdenum intercept at Briggs while early core observations suggest its John Hill deposit may extend beyond the current resource boundary. The results support ongoing resource upgrades and feasibility work, but John Hill assays are still pending.

Many Peaks Minerals has extended the tested vertical depth of gold mineralisation at its Ferké project by about 70%, with a deepest intercept returning 40.3 metres at 3.89g/t gold. The results support a planned resource update and preliminary assessment of underground mining, but remain exploration results outside the current resource.

Adavale Resources has lifted its Parkes Project gold inventory to 383,300 ounces, led by a 228% increase at London-Victoria after an 85-hole drilling campaign. The company is now moving from resource definition towards metallurgical testing and a Scoping Study, although no production decision or project economics has been disclosed.

McLaren Minerals has moved its flagship McLaren Titanium Project into bankable feasibility, backed by a 529 million tonne resource and a 663-hole drilling campaign. But the pre-revenue explorer remains reliant on further funding, with the Barossa acquisition still conditional and 118.4 million options issued after year-end.