Attached are the XRF runs on Persson¡¯s #15 powdered bag sample
labeled Yt+HREE Fluorite from the White Cloud Pegmatite South Platte CO. The
powder is remarkably high in the LREE and HREE with even Sm showing up on the
50kV beam. ?
Percent level assay is valid in the ¡All.png file which was run
in the Mining Plus mode which is for materials in the percent range, while the Low
E PNG and Hi E.png files were run in the Soils Mode which is accurate for ppm
level elements.