Hello,
 Is use of estimation variance for classification of resource confidence e.g the AusIMM's resource
categories of Measured, Indicated and Inferred common and is this good practice. Also how is this
effected by block size in that should a reasonable block size be chosen e.g. 1/4 drillhole spacing.
Thanks in advance.
Regards Digby Millikan.
Geolite Mining Systems

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