Crystals WebQuest
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http://www.wisegeek.com/what-is-crystallization.htm
http://www.chemistry.co.nz/crystals_defined.htm
http://www.ivyroses.com/Crystals/CrystalIndex_common.php
http://skywalker.cochise.edu/wellerr/students/crystals/project.htm
http://cavern.com/Learn/default.asp
http://ngm.nationalgeographic.com/2008/11/crystal-giants/shea-text
