Rare Earth Elements: A Review of Production, Processing ...
----- Rare Earth Elements Review Section 2 - Introduction to Rare Earth Elements 160 140 120 $ 100 o '•B 80 I « 40 20 Global Production of Rare Earth Oxides, 1950-2007 China 1950 1960 1970 1980 1990 2000 Figure 2-4.