Fractionated pegmatites.
To get your bearings; it's not too far from FIN's White Bear rock chips, as well as WR1's Cancet deposit and Champion's new pegmatite find.
Other ASX coys along the same greenstone: JBY west of FIN below has field work targets for this summer, while MLS found fractionated pegmatites further east and CX1 also found fractionated pegmatites on what is interpreted to be a dismembered section of the same of greenstone out east. OC there's also PMT. There will be a few crews out there the next field work season.
The red crosses are a couple of today's higher Rb ppm and the 22 K/Rb ratio.
As always, DYOR.
(20min delay)