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2013-09-06 23:02:46

Transparency Market Research published new "Rare Earth Metals Market (Lanthanum, Cerium, Neodymium, Europium, Yttrium, Scandium, Terbium & Other Key Elements) Market - Global Industry

2013-07-01 23:04:22

Transparency Market Research published new “Rare Earth Metals (Lanthanum, Cerium, Neodymium, Europium, Yttrium, Scandium, Terbium & Other Key Elements) Market - Global Industry Analysis,


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28_10ceb8296ebfb3e40dca86f5bf25f165
2005-05-25 18:46:47

A rare earth is an oxide of a rare earth element. Often rare earth elements themselves are loosely called "rare earths". As to exactly what is a "rare earth" element is a matter of some ambiguity. The narrowest definition restricts it to the lanthanides, which are lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. Sometimes the radioactive actinides are included, so that all elements...

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Word of the Day
aphotic
  • Having no light.
  • Of or relating to the region of a body of water that is not reached by sunlight and in which photosynthesis is unable to occur.
The word 'aphotic' comes from Greek roots meaning 'without' and 'light'.
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