Researchers unearth 'tectonic events' that formed Canadian sapphires

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http://img-s-msn-com.akamaized.net/tenant/amp/entityid/AAp94Rf.img?h=100&w=100&m=6&q=60&o=f&l=fTreasure-hunting Canadian researchers say they have figured out how to find sapphire deposits by identifying the exact sequence of geologic events that create the sparkling gemstone.

أكثر... (http://www.msn.com/en-ca/news/canada/researchers-unearth-tectonic-events-that-formed-canadian-sapphires/ar-AAp9ccT?li=AAggv0m&srcref=rss)