Click Here for the Table of Contents! Gemmological References
Information on Gems Ask a Gemologist! List of Author's Credentials

Official State Gemstones of the United States
Alabama Blue Star Quartz
Alaska Nephrite Jade
Arizona Turquoise
Arkansas Diamond
California Benitoite
Colorado Aquamarine
Connecticut Garnet
Florida Moonstone
Georgia Quartz
Hawaii Black Coral
Idaho Star Garnet
Illinois Fluorite
Kentucky Fortification Agate
Louisianna Agate
Maine Tourmaline
Maryland
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 Patuxent River Stone
Massachusettes Rhodonite
Michigan Chlorastrolite
Minnesota Lake Superior Agate
Montana Yogo Sapphire
Nebraska Blue Agate
Nevada Turquoise & Black Fire Opal
New Hampshie Smokey Quartz
New Mexico Turquoise
New York Garnet, Black Button Tourmaline, Moonstone
North Carolina Emerald
Ohio Ohio Flint
Oregon Sunstone
South Carolina Amethyst
South Dakota Fairburn Agate
Tennessee Tennesse Pearl
Texas Blue Topaz
Utah Topaz
Wisconsin Ruby
Wyoming Nephrite Jade


The following books are my recommendations for further study.
They are some of the best available.
If you would like a larger selection, please visit the Book Shop.

Gemstones: Symbols of Beauty and Power
by Eduard J. Gubelin, Franz-Zaver Erni


The Curious Lore of Precious Stones:
by George Frederick Kunz


Gemstone Buying Guide: A Guide to Buying
by Renee Newman


Gems: Their Sources, Descriptions and Identification...
by Robert Webster, Peter G. Read (Editor)