10. Birthstones
    traditional, modern, and mystical birthstones.
    http: //gems4friends.com/~lorraine/birthstones....
    
    
11. NOVA: The Perfect Pearl
    learn about the culturing and history of pearls, and examine the mystery of what has been killing the oysters of Japan's Ago Bay.
    http: //pbs.org/wgbh/nova/pearl/
    
    
12. Mineral Collecting
    Mineral Collecting for About.com
    http: //collectminerals.about.com/index.htm
    
    
13. Canadian Rockhound
    Explore the world of Minerals, Gems, Fossils and the Geology of our Planet. Articles, news and events about gems and minerals.
    http: //canadianrockhound.com/
    
    

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