Ann: LCT Pegmatite Discovery with High Lithium on New Trend, page-8

Lithium is easily dissolved and thus becomes 'weathered' as you would expect form a rock exposed to the surface for how many thousands of years.
Caesium and Tantalum not so with concentrations maintained (not subject to as much weathering impact) for much longer.

I think they are onto something fantastic that is also buttressed by the PMT.AX find and being on trend.

Do I trust management? no sir.

Am I upset about my MLSOD holding? indeed.

But I also have heads that are likely to be a 3 bagger in the next 12 months.

This Geo talks about weather of Lithium as a FYI.