Ann: Exceptional Leach Recoveries of Rare Earth Elements at Innou, page-76

Good article thanks for posting. From the original announcement from DM1 15/6/22 "An additional 80 samples from the Company’s rare earth element project at Innouendy have been re-analysed using ALS Geochemistry’s Aqua Regia weak acid digest procedure (ME-MS41W). This procedure is used to determine the proportion of leachable REEs. Aqua regia leach is an ideal medium for the release of elements adsorbed on clay particles though will not dissolve significant quantities of the silicate and alumino-silicateminerals or major refractory minerals when compared to the near total digestion of the Lithium Borate Fusion method (ME-MS81) or the Four Acid digest (ME-MS61)" it seems that reading that mount Ridley used a modified Aqua regia test. there is more to these Aqua regia tests than has been discussed. it is obvious that DM1 were chasing the adsorbed clay fraction of the REE's from the comment above and got good results. I think ALS have a similar test or similar outcome to ANSTO.