RE: Kipawa Eudialyte: highest overall value HREE I can also add that the quality of Matamec's deposit with the simplicity and inexpensive nature of its metallurgy stands above similar deposits elsewhere that have required very large quantities of high-concentration acid to dissolve the rare earths and to crack the eudialyte that is contained in those other deposits allowing for the extraction of the rare earths. Matamec doesn't have this issue as the eudialytes at Kipawa are uniquely very course grained making the extraction process so much more inexpensive than other eudialyte's around the world where those deposits are found to be of a very fine grained tightly interwoven composition.