[TECH]:: Excellent "rare earth" minerals overview

       http://seekingalpha.com/article/103972-rare-earth-metals-not-so-rare=
-but-valuable

Useful but not as condensed as the above

        http://en.wikipedia.org/wiki/Rare_earth_element

Rare earth magnets

     http://en.wikipedia.org/wiki/Rare-earth_magnet



Rare Earth hypothesis
Completely unrelated :-)
Fermi paradox possible solution

             http://en.wikipedia.org/wiki/Rare_Earth_hypothesis
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