From the last news release

There is a strong positive association (correlation coefficient of approximately 0.95) between TREO grade from assay results and radioactivity as defined using detailed scintillometer measurements. The linear formula generated by the correlation was subsequently applied to obtain an indicative TREO% in all drillholes that have been sampled, have radiometric measurements, and are awaiting assays.


It looks like there must be a way to use the radioactivity to know were the monazite is.