Lots of room for error because there's massive upside. All of the results are partial recoverable grades, i.e. partial extractions from testwork, so every result is less than 100% of the true grade. There's no nugget effect in the fresh rock because the the mineral particles are extremely fine.
"The results may not represent the total metal values in the samples, but rather physically extractable gold based on the various extraction/recovery methods currently being tested"
...and ...
"As the flux mix utilised was developed specifically for testing the mafic intrusives at Três Estados and Ema it is believed that the results obtained for the felsic rocks from the Ema diamond drilling may be sub-optimal. BBX´s international consultant team is currently conducting flux modelling to optimise the flux chemistry for treatment of the quartz-porphyry."
Ann: Exploration Update, page-17
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