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Science > Earth Sciences > Geology > Rocks and Minerals > Gemstone

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Bluechart - http://www.gembluechart.com/
A gem identification chart for $18.

Caribbean Gemological Institute - http://www.carigem.org/
Caribbean jewelers organization includes jewelry, shopping and travel tips..

Dan Dennis - http://www.dandennis.com/
Author of "Gems: A Lively Guide for the Casual Collector."

Florida Gold Coast & Mineral Society - http://www.fgcgms.com/
Gold and Mineral Society in Florida.

FTC - http://www.ftc.gov/bcp/guides/jewel-gd.htm
FTC Guides for jewelry and precious metals.

Gem Hut - http://www.gemhut.com/
Hundreds of descriptions for gems, minerals, and rare metals. Pictures, hardness, and composition.

Gemology Tools - http://www.gemologytools.com
Software for the professional gemologist or gemology student/enthusiast.

Gems and Precious Stones - http://ist-socrates.berkeley.edu/~eps2/
An on-line gem and jewelry course at UC Berkeley.

Gemstone Forecaster Newsletters - http://www.preciousgemstones.com/Forecasters.html
Analyzes Burma ruby and sapphire gems and collector gemstone markets.

GeoNord - http://www.geonord.org/
Gem and mineral site from Sweden.

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.

NOVA - http://www.pbs.org/wgbh/nova/diamond/gemprimer.html
Gemstone primer with photos and vital information regarding gemstones.

Secret Jewelry Collection - http://www.geocities.jp/senribb/jewels/
A Japanese collector's site of jewelry, minerals and gemstones.

Secrets of the Gem Trade. The Connoisseur's Guide To Precious Gemstones. - http://secretsofthegemtrade.com/
A new gem book by R. W. Wise.

The Amber Ranch - http://www.ambarazul.com
Dominican rough blue amber for jewellers and collectors.

The Image - http://www.theimage.com/
Mineral and gemstone galleries. Physical properties and historical facts for minerals and gemstones.

University of Texas Gem Class - http://www.geo.utexas.edu/courses/347k/redesign/Gem_Notes/gemnote_triple_frame.htm
Gem and Mineral class at the University of Texas, Austin.

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