Closed Mine Sites off er new Criti ca l Mine rals Op portuni ties Man y hi storica l min in g op era tion s we re d eve lo pe d to pro du ce on e bu lk co mmod ity such as co pp er bu t t he re so u rce co n tai n e d critic a l mi n e ra ls tha t we re d isca rd e d as w aste as the re w as no marke t t he n The se h istori cal wa stes can no w be treate d a s op po rtun itie s to susta in ab ly reco ver critica l min era ls u sin g n e w tech n o lo g ie s wh il e re me d ia tin g the lo n g term en viro nme nta l lia bi lity Ava lo n is lo oki ng at imp le men ting the se n ew tech no lo gi es such as se nso r based ore sortin g at a clo se d tin min e site in No va Sco tia Ot he r op po rtun itie s in clu de a tech no lo gy for extra cting di ssol ved rare el eme nts from aci d min e dra in ag e 20 Re v egetated tail ings Sudb ury O ntari o