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Official State Rocks

State	Name	Designated as	Year
All official rocks listed by state.
Alabama	Marble	Official rock	1969
Alaska
Arizona
Arkansas	Bauxite	Official state rock	1967
California	Serpentine	Official State Rock and lithologic emblem	1965
Colorado	Yule marble	State rock	2004
Connecticut
Delaware
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa	Geode	State rock	1967
Kansas
Kentucky	Kentucky agate	Official rock	2000
Louisiana
Maine
Maryland
Massachusetts	Babingtonite	Mineral or mineral emblem	1971
Massachusetts	Dighton Rock	Explorer rock	1983
Massachusetts	Plymouth Rock	Historical rock	1983
Massachusetts	Roxbury Puddingstone (Roxbury Conglomerate)	Rock or rock emblem	1983
Michigan
Minnesota
Mississippi
Missouri	Mozarkite	Official rock and lithologic emblem	1967
Montana
Nebraska	Chalcedony stone, Prairie agate	State rock	1943
Nevada	Sandstone	Official state rock	1987
New Hampshire	Granite	Official state rock	1985
New Jersey
New Mexico
New York
North Carolina	Granite	Official State rock	1979
North Dakota
Ohio
Oklahoma	Barite Rose (Rose rock)	Official rock	1968
Oregon	Thunderegg	Official rock	1965
Pennsylvania
Rhode Island	Cumderlandite	Official state rock	1966
South Carolina
South Dakota
Tennessee	Calcium carbonate (Limestone)	Official state rock	1979
Texas
Utah	Coal	State rock	1991
Vermont	Marble	State rock	1991
Vermont	Granite	State rock	1991
Vermont	Slate	State rock	1991
Virginia
Washington
West Virginia	Bituminous coal	Official state rock	2009
Wisconsin	Red granite	State rock	1971
Wyoming
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..