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Official State Rocks

All official rocks listed by state.
State Name Designated as Year
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 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 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 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 and Minerals 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 and Gem 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..

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