It was an interesting review, thanks for suggesting it to CptQuartz.
The weathered rock is a concern IMO, particularly as the pictures of the drill core in the presentation look like it is competent rock (not fine clay). The issue is these REE clay projects need to be free dig with no crushing/grinding direct into tank leaching to have a chance of economic extraction (IMO) or if rock hosted need heap leaching at coarse +3 mm size with decent grades >1200 ppm TREO. The follow up issue is the GRL leach tests were done on pulverised sample (ground to bug dust) so the outstanding question is - does Narraburra need a full fine grinding circuit to achieve the leach extractions they have achieved on pulverised sample? Would be interested in anyone's thoughts as it is has a big impact on the chances of being economic.
It was an interesting review, thanks for suggesting it to...
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