I tried doing some quick research on what is a viable lithium concentration, which is supposedly above 200ppm, but I think that is for pumped up brine rather than surface samples. I don't know how dry surface samples translate to something that can actually be economically be extracted.
https://en.wikipedia.org/wiki/Brine_mining
Can anyone point to some references?
Ann: Exploration Update - Muddy Mountain, page-11
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