Ann: Outstanding Ionic Clay Recoveries from Metallurgical Results, page-71

Agree, I am not trying to suggest they are going to have a crushing or pulverising circuit or anything of the sort, this is a soft clay deposit. In the clay there will be a lot of larger 0.1-0.5 mm particles (see Aussie clay explorers where their sizing testwork shows half the mass is typically +75 micron in clays). Just find it strange that after doing expensive diamond drilling for met work, they would then pulverise and leach pulverised material, which isn't representative of the in ground clays. Why not just put the as-drilled clay material straight into the leach tests to ensure the results are representative?