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Earth Sciences: Geology: Rocks and Minerals: Gemstone: Page 2

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Gemstone

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Gemology Tools

http://www.gemologytools.com

Software for the professional gemologist or gemology student/enthusiast.

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National Gemstone

http://www.preciousgemstones.com/GEMCOLLECTING.HTML

Introduction to collecting and investing in gemstones and colored diamonds, with descriptions of the types most widely traded.

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Category for: Earth Sciences: Geology: Rocks and Minerals: Gemstone: Page 2