NVA 1.64% 15.5¢ nova minerals limited

Ann: Nova Hits 78m @ 16.0 g/t Gold Within 258m @ 5.1g/t at RPM, page-108

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    For Victoria Gold's 2016 Feasibility Study only 67% of the Resource was included in the Reserve.

    NVA's planned Feasibility Study will be NVA's first cut Feasibility Study.

    Victoria Gold in 2016 had 3.96 Moz M&I in the resource.
    Victoria Gold in 2016 had 2.663 Moz M&I in the reserve.
    So 67% of the resource converted to reserve.

    Their recovery was 72.9% for Heap Leach. Ounces produced and in the mine plan worked out at 1.884 Moz (70.7% of the Reserve), whereas 72.9% recovery would imply 1.941 Moz contained gold in the mine plan. The difference is probably mining dilution.

    I think for Estelle we need to assume perhaps no more than 67% converted to reserve (conservatively 60%).

    From the recent announcement overall recovery from RPM will be around 88.9%.
    The Scoping Study Phase 1 had 88.6% recovery for the Korbel deposit.


    I would then shave the result by at least 5% for dilution.

    So calculation becomes:

    LOM ounces produced = Ounces in Resource x 60% (assumed Resource to Reserve) x 88% (assumed Recovery ) x 95% (assumed mining Dilution)

    Note - Victoria Gold's 2016 Feasibility Study is no longer on their website. I have a copy but it is 35MB so can't upload it here.
    Last edited by wombat777: 24/08/22
 
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