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Articles
• Emerald Detectives
• Origin And Trade Of Some Of The World's Most Historic Emeralds
• All is not green that glisters: Colombia The Economist Newspaper Ltd.: Feb. 98
• Oxygen Isotopes and Emerald Trade Routes Science Magazine: Jan. 2000
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Magazines
• The Emerald Report
• Gems & Gemology Journal
• National Jeweler News
• Rocks & Minerals Magazine
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