We can customize the low Mg & Zn grade of Mischmetal detailed as below :TREM 99%minCerium/REM 48-56%Lanthanum/REM 23-30%Praseodymium/REM 4-7%Neodymium/REM 12-20%Fe 0.3%maxMg 0.05%maxZn 0.05%maxC 0.05%maxW 0.05%maxMo 0.05%maxPb 0.03%maxCa 0.05%maxTi 0.05%maxSize : the pyramids or piglets of about 30 gram, 50 gram, 100 gram, 250 gram, 500 gram, 1000 gram, 3000 gram, 8000 gram per piece at buyers option.Packing: inner plastic bag outside steel drum of 50kg, 100kg or 250kg net each.