I’d actually said after the cyclone on the drill rig. So in the riffle splitting process. Thin bands (<1m) of high grade mineralised clay could have been inadequately split and the resultant sub-sample that is sampled by the field hand from the larger riffle split sample may not be representative (in an analogous way to the assay problem I described earlier). ie the 50g charge doesn’t contain the smeared/flattened gold grain....ie analogously the small few kilo sample taken from the larger riffle split 1m sample fails to adequately represent the 1m sample ie the riffle splitter fails to properly homogenise the sample over the 1m interval. Maybe they could try riffle splitting the sample multiple times before collecting the sample sent to the laboratory for assay. I’d imagine the RC spoils are still sitting in plastic bags somewhere so it would be a labour intensive exercise to re-riffle split and re-sample them but not necessarily a very expensive exercise as they know which metres to target (you wouldn’t need to do it for all the metres drilled). Esh
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