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    Forrestania million‑ounce milestone: MacPhersons pit design notes for planners

    June 2, 2026|

    Reviewed by Tom Sullivan

    Forrestania million‑ounce milestone: MacPhersons pit design notes for planners

    First reported on Australian Mining

    30 Second Briefing

    Forrestania Resources has issued a maiden JORC mineral resource estimate for the MacPhersons gold deposit in Western Australia, comprising 1.84 million tonnes at 1.25 grams per tonne and lifting its global gold inventory to 1,007,800 ounces. Chairman David Geraghty said the MacPhersons addition pushes the company past the one‑million‑ounce milestone across its portfolio. For mine planners and geotechnical teams, the new tonnage and grade provide a basis for pit optimisation, geotechnical drilling design and sequencing studies at MacPhersons.

    Technical Brief

    • MacPhersons is reported as a maiden mineral resource estimate, implying no prior JORC-compliant dataset.
    • The deposit sits within Forrestania’s Western Australian gold portfolio, enabling shared regional infrastructure and logistics planning.
    • Classification as a JORC mineral resource allows formal conversion workflows to ore reserves once modifying factors are defined.
    • Forrestania now treats MacPhersons as an additional standalone gold asset, not merely satellite tonnage.
    • Public disclosure of an MRE triggers typical follow-on work: detailed drilling, metallurgical testwork and geotechnical characterisation.

    Our Take

    Forrestania Resources has been on an acquisition streak in Western Australia – with recent moves at Newington, Hyden and Johnson Range – so the MacPhersons million‑ounce milestone likely strengthens a multi‑asset gold development narrative rather than a single‑deposit story.

    At 1.84Mt @ 1.25g/t, MacPhersons sits in the lower‑grade end of the gold projects in our database, which typically pushes operators towards scale, satellite feed or toll‑treating strategies rather than a standalone high‑margin underground mine.

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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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