praseodymium   2

Commodities: In their element
"Rare earths are to China as oil is to the Middle East." Deng Xiaoping
rare_earths  China  periodic_table  cobalt  tungsten  wolfram  rhenium  neodymium  samarium  tin  terbium  ruthenium  cerium  lanthanum  praseodymium 
february 2010 by Protalina

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cerium  china  cobalt  ev  lanthanum  magnets  neodymium  periodic_table  rare_earths  rhenium  ruthenium  samarium  terbium  tin  tungsten  wolfram 

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