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Official State Gems

State	Name	Designated as	Year
All official state gems listed by state.
Alabama	Star Blue Quartz	Official gemstone	1990
Alaska	Jade	Official state gem	1968
Arizona	Turquoise	Official state gemstone	1974
Arkansas	Diamond	Official state gem	1967
California	Benitoite	Official state gemstone	1985
Colorado	Aquamarine	State gemstone	1971
Connecticut
Delaware
Florida	Moonstone	Florida state gem	1970
Georgia	Quartz	Official Georgia state gem	1976
Hawaii	Black coral	Official gem	1987
Idaho	Star garnet	Official state stone, or gem	1967
Illinois
Indiana
Iowa
Kansas
Kentucky	Freshwater-pearl	State gemstone	1986
Louisiana	Agate	Official state gemstone	1976
Maine
Maryland	Patuxent River Stone	State gem	2004
Massachusetts	Rhodonite	Gem or gem emblem	1979
Michigan	Chlorastrolite	State gem	1972
Minnesota	Lake Superior agate	Official gemstone	1969
Mississippi
Missouri
Montana	Montana agate	Official Montana state gem stone	1969
Montana	Sapphire	Official Montana state gem stone	1969
Nebraska	Chalcedony stone, Blue agate	State gem stone	1943
Nevada	Virgin Valley black fire opal	Official state precious gemstone	1987
Nevada	Nevada turquoise	Official state semiprecious gemstone	1987
New Hampshire	Smoky quartz	Official state gem	1985
New Jersey
New Mexico	Turquoise	Official gem	1967
New York	Garnet	Official gem	1969
North Carolina
North Dakota
Ohio	Ohio flint (Crypto-crystalline variety of quartz)	Official gem stone	1965
Oklahoma
Oregon	Sunstone	Official gemstone	1987
Pennsylvania
Rhode Island
South Carolina	Amethyst	Official gem stone	1969
South Dakota	Fairburn agate	Official state gemstone	1966
Tennessee	Tennessee pearl	Official state gem	1979
Texas	Blue topaz	State gemstone	1969
Utah	Topaz	State gem	1969
Vermont	Grossular garnet	State gem	1991
Virginia
Washington	Petrified wood	Official gem	1975
West Virginia	Calcedony	State gem	1990
Wisconsin
Wyoming	Jade	Official gemstone	1967
Gemstones of the World, by Walter Schumann, 272 pages, Sterling; 3 Rev Exp edition (January 1, 2007) Gemstones of the World is truly the single volume that every hobbyist, jeweler, jewelry maker, and rockhound needs: it’s the cornerstone of the field. And this updated edition contains a host of new findings on “Gemstones for Collectors,” additional gems in the “Table of Constants,” and the “double fraction” figures that experts have long wanted—a very special new feature..
Rocks & Minerals, by Chris Pellant, 256 pages, DK ADULT; 1st edition (September 1, 2002) The Smithsonian Handbook of Rocks and Minerals combines 600 vivid full--color photos with descriptions of more than 500 specimens. This authoritative and systematic photographic approach, with words never separated from pictures, marks a new generation of identification guides.
Gemstones, by Cally Hall, 160 pages, DK ADULT; 2 edition (May 15, 2002) The Smithsonian Handbook of Gemstones is packed with more than 800 vivid full-color photographs of more than 130 varieties of cut and uncut stones, organic gemstones, and precious metals. With authoritative text, clear photography, and a systematic approach, this concise guide to identification enables you to recognize each gemstone instantly..
Rocks & Minerals, DK Eyewitness Book for ages 9-12, 72 pages, DK CHILDREN (August 2, 2004) Here is a spectacular and informative guide to the amazing world beneath our feet. Stunning color photographs of rocks, fossils, minerals, precious metals, crystals, jewels and gemstones give the reader a unique "eyewitness" insight into the evolution and composition of the Earth. See rocks that have come from outer space, stalactites as old as dinosaurs, the strange and beautiful shapes of natural crystals and priceless nuggets of gold, silver and platinum..
Crystal & Gem, DK Eyewitness Book for ages 9-12, 72 pages, DK CHILDREN (June 25, 2007) Now kids can learn the answers to questions about the earth, sea, and air with these earth science lesson books. Discover the fascinating world of crystals and gems - their beauty, uses, structure and amazing variety. This DK Eye Witness book will tell you all about rock gems and diamonds. Here is a spectacular and informative guide to the amazing world of crystals and gems. Superb color photographs of crystals, jewels and gemstones of every color, size and shape offer a unique "eyewitness" insight into their extraordinary beauty and variety..