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Many people think of crystals as little more than sparkly things behind glass cases in museums. But crystals are everywhere, from the dinner table to the human body. Because 2014 is the International Year of Crystallography, Reactions is celebrating with a video highlighting five surprising facts about crystals. Have a favorite crystal? Our friends at Chemical & Engineering News want to hear about it! Vote at http://cen.acs.org/favecrystals.html, and while you’re there, you can learn a lot more about these amazing structures. Check out our other videos and be sure to subscribe for more chemistry goodness.