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    Aureka Comstock resource drilling: modelling and confidence insights for engineers

    May 29, 2026|

    Reviewed by Tom Sullivan

    Aureka Comstock resource drilling: modelling and confidence insights for engineers

    First reported on Australian Mining

    30 Second Briefing

    Exploration activity across Australia remains strong, with Aureka, Stelar Metals and Western Mines Group all advancing drilling and field programmes targeting gold, tungsten and nickel. Aureka has started an infill diamond drilling campaign at the St Arnaud Comstock project in Victoria to upgrade resource confidence, signalling a move towards more detailed geological modelling and potential resource estimation. Parallel work by Stelar Metals and Western Mines Group on tungsten and nickel prospects points to continued funding and technical focus on critical and battery metals exploration.

    Technical Brief

    • Infill programme at St Arnaud Comstock uses diamond coring, enabling oriented structural data and high-quality assays.
    • Close-spaced drilling will tighten sample support for grade interpolation, critical for upgrading JORC resource categories.
    • Core recovery and geotechnical logging from the infill holes will inform pit slope design and underground access options.
    • Structural measurements from oriented core should refine vein-set geometries, aiding more realistic geotechnical domain modelling.
    • Detailed lithological logging will better constrain alteration halos, improving density assignments for tonnage calculations.
    • Collectively, these programmes indicate sustained funding for advanced-stage drilling rather than only early-stage reconnaissance across multiple commodities.

    Our Take

    Aureka also appears in recent coverage around the legacy Cloncurry copper project in Queensland, suggesting the contractor is building a portfolio of brownfields and historic-lode work that could be attractive for projects like Comstock with past production or complex geology.

    Stelar Metals has featured in other Australian exploration round-ups alongside copper–gold targets, so its presence here with gold and nickel indicates it is positioning as a multi-commodity explorer rather than a pure-play gold junior in our database.

    Gold remains one of the most common commodities in our 1193 Mining stories, but tungsten is referenced far less frequently, so any tungsten-bearing results at the St Arnaud Comstock project in Victoria would place it in a relatively small cohort of Australian hard-rock tungsten prospects under active drilling.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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