1.5% Zn cut-off for material (of non-specified thickness or mining method) at almost 800m depth having reasonable prospects for eventual extraction! Spare me.
Figure 3 suggests that close to half of the resource may be down-dip (and along strike) extrapolation supported by a single drill hole. It would be good to know what proportion of resource blocks were estimated with the 100m by 100m by 30m search.
Ann: Maiden Mineral Resource Estimate at Mt Hardy, page-2
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