Specification : Total Rare Earth 98.5%minCerium/REM 52-62%Lanthanum/REM 26-36%Praseodymium/REM 3-8%Neodymium/REM 0-5%Fe 1.0%max Si 0.15%maxS 0.02%maxP 0.01%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.