Smithsonian Education: Minerals, Crystals, and Gems Feature Summary

Physics in Your World
Smithsonian Education - Minerals, Crystals, and Gems
-- This is a crystal of fluorite (calcium fluoride), the official state mineral of Illinois. To find out more about it, visit its Wikipedia entry.
-- For more on crystals, how they form, and how they are cut into gems, visit the Smithsonian's Minerals, Crystals, and Gems. While you're there, you can learn about the Hope Diamond.
image credit: Creative Commons; <a href="" target="_blank">image source</a>; <a href="" target="_blank">larger image</a>
image credit: Creative Commons; image source; larger image
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January 1, 2009 - January 16, 2009