... 99%-99.9%min. Any requirement, please contact us freely. NEODYMIUM METAL SPECIFICATIONS: CODETREM min %Nd/TREM min %RE-Impurities max ... rare earth oxides, rare earth salts, metal neodymium, metal praseodymium, Pr-Nd alloy, praseodymium, neodymium and dysprosium alloys, metal lanthanum, low iron ... develop together. High purity 99%-99.9%(2n-3n) gray Neodymium Metal (nb) ingots