NT Fracking, page-27

The attached might help.
http://www.saltworkconsultants.com/blog/lithium-in-saline-settings-1
https://www.thebalance.com/lithium-production-2340123

As a general rule potash to lithium ratios are around 10 - 15 units potassium to every 1 unit lithium from recollection. My understanding of brines is Li20 is generally quite quite low in brines, generally much much less than 0.5% Li20, but I suspect here given the depth of the supposed brine layers (Kyalla and Valkerri) suspect you are going to need some decent concentrations to make them economic (i.e. might be different for the surface layers in the lagoon - the potassium rich clays in Balmain swamp).

Anyway, if GPP ever develop (note the emphasis on ever) the NT tenements suggest the principal product is potash in any event, and my view has always been the growing lithium markets are those sourced by hard rock (given hard rock has less impurities than brine and can accommodate the needs of the growing lithium hydroxide market better). That is why I prefer Turesi and see NT as a distraction if people are talking Li from there (potash different). All IMO