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Gemology and Appraisal:

• Gem Art Lab

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Jewelry Designers:

• TLee Fine Designer Jewelry

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Organizations:

• American Gem Trade Association (AGTA)
• Gem Artists of North America (GANA)
• Gemological Institute of America (GIA)

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Readings:

• Lapidary Journal
• Colored-Stone Magazine
• Mindat Mineralogy Database
• Mt Mist special books (Books by Henry Hunt)
• Askjeeves: Gem mines, U.S.
• Google: U.S. Gem Mining
• World Mining Report: North America

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Rough Gem and Stone:

• African Gemstones, LLC
• TMS Gems.com
• Down to Earth Opals
• Richardson's Rock Ranch
• The Jade Mine
• The Gem Shop

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Tools and Diamond Bits:

• Diamond Pacific Tool Corporation
• Mt Mist Sintered Diamond Tools
• Lasco Diamond
• Kingsley North
• Dad's Rock Shop
• Daniel Lopacki Company
• Covington Engineering
• Foredom Power Tools & Accessories
• Turbo Carver