A quick search on the word Thulium turns up the fact that it is a metal on the periodic table of elements and has an atomic number of 69 (well, that explains the EP title and logo). It is expensive, rare, and is used in X-ray machines and solid state lasers. Aside from those two uses, the element does not seem to be all that impressive. Sure, it is rare, but it is never found alone or in any great quantities, it is, for the most part, non-toxic.
