AVZ (ASX) Running discussion on SP

Originally posted by Obe wan ↑

it’s depends where on the site you are mining .

AVZ Manono is in tick slabs if you like, so the ‘overburden’ is basically just dozed off to the side ; there will be a percentage of that material that will hit the conveyor; but this small percentage will reduce very quickly as one drops below ground level and into the ore.

the links of the Pilgangoora tenements need to pass through overburned , hit quite thin veins, before needing to pass through ... what you could consider another thick overburden before hitting another vein. So the likes of PLS,AJM, MIN will always have much mugger percentage of sheet passing through with the ore.

apart from processing : extraction costs per tonne will be a lot higher in those sites than it would be at manono .

MINs costs would be horrendous in comparison to even PLS or AJMs I’d imagine

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Ta Obe Wan. So it is not as simple as just looking at the strip ratio to determine the extent of undesired material which might enter the spod process but clearly having more dense/thick depositions of ore is more desirable (all other things being equal) than a more interspersed arrangement such that physical separation during mining is easier in one case than the other.

So for Manono, assuming that the 0.9% FeO undesirable (just as the most popular example of contaminant ignoring the others in the current AVZ MET material) is within the “overburden/waste” which can be more easily physically separated at mining, that would mean almost nil FeO needing to be dealt with in spod processing and an increadibly low FeO spod produced. If instead the FeO is inherently within the ore containing material it means that there’s still 0.9% FeO to handle (on current MET anyway). If it’s present throughout both “types” of material, well I assume that 0.9% is also at average 0.9% throughout. So it’s likely about the mineralogy of the deposit ... is the FeO (as one example of impurities) in the waste material, in the Li holding material, or in both and when MET tested to 0.9% was it a mixture of the “strip/waste” material tested along with the ore “slab” material or just material from the ore containing “slab” areas. No wonder the average punter has trouble understanding this sheet...