AR3 australian rare earths limited

Ann: Koppamurra test work results in excellent recoveries, page-3

  1. 439 Posts.
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    Hi 2ic,

    Yep, the test results appear to have been cherrypicked to fit the narrative. It's a good observation that the acid consumption on samples CP001 thru 10 is not disclosed and that the RE recoveries are only noted for pH1, despite the preceding glowing commentary on recoveries and reduction in acid consumption between pH1.5-2.0 for samples KM0241_4 and KM0234_3, which is somewhat inconsistent if not outright misleading.

    A couple of other things that I picked up on that may or may not be of importance; the KM samples tested are between 1,241 and 2,125 ppm TREO or 1.5-3 times the average resource grade of 785ppm TREO and the CP samples were also all well above the average grade, so I don't think the test results are necessarily applicable to the resource in general, particularly the lower grade component, although to be fair the CP sample graph does not appear to show much if any correlation between TREO grade and recoveries at pH1.

    They are also very specific about the reduction in acid consumption from the dissolution of iron and aluminium, but make no mention of any reduction in acid consumption from dissolution of calcium carbonate, which you have pointed out is the major concern here given that their tenements overlay the Coonawarra/Limestone Coast.
 
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