Friday, October 4, 2013

Coal high in fluorine and iron pyrite makes hydroflouric acid to mess up bones and teeth of people in Guizhou, China

Coal high in fluorine and iron pyrite makes hydroflouric acid to mess up bones and teeth of people in Guizhou, China


http://nextbigfuture.com/2013/10/coal-high-in-fluorine-and-iron-pyrite.html

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