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This category is for information about gemstones and their properties. Gemstones are generally regarded as: Polished fragments of 'precious' and 'semi-precious' minerals, used for decorative purposes. Examples of Precious Stones: Diamonds / Sapphires / Rubies / Emeralds Examples of Semi-Precious Stones: Topaz / Garnet / Spinels. Examples of Other stones used as gems: Jade / Agate / Opal

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Links:

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

Fluorescent Minerals under Ultraviolet Light Descriptions and pictures of different gems and minerals under UV lights. home.pacifier.com/~leopard

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

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

Bluechart A gem identification chart for $18. www.gembluechart.com

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

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

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

University of Texas Gem Class Gem and Mineral class at the University of Texas, Austin. www.geo.utexas.edu/../../../Gem_Notes/gemnote_triple_frame.htm

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

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

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

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

GeoNord Gem and mineral site from Sweden. www.geonord.org

Photomicrography by Erik Carlson Photomicrography of diamonds and other gemstones. www.gemstoneinclusions.com

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

National Gemstone Introduction to collecting and investing in gemstones and colored diamonds, with descriptions of the types most widely traded. www.preciousgemstones.com/GEMCOLLECTING.HTML

Florida Gold Coast & Mineral Society Gold and Mineral Society in Florida. www.FGCGMS.com

Smithsonian Gem & Mineral Collection Pictures and short descriptions of gems and minerals found at the Smithsonian. gimizu.mzuther.de/sgmcol

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