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Official State Rocks

Official rocks listed by state. (List by state or year)
StateList by state Name Designated as Year
Alabama Marble Official rock 1969
Alaska [ None ]    
Arizona [ None ]    
Arkansas Bauxite Official state rock 1967
California Serpentine Official State rock and lithologic emblem 1965
Colorado Yule marble State rock 2004
Connecticut [ None ]    
Delaware [ None ]    
Florida [ None ]    
Georgia [ None ]    
Hawaii [ None ]    
Idaho [ None ]    
Illinois [ None ]    
Indiana [ None ]    
Iowa Geode State rock 1967
Kansas [ None ]    
Kentucky Kentucky agate Official rock 2000
Louisiana [ None ]    
Maine [ None ]    
Maryland [ None ]    
Massachusetts Dighton Rock Explorer rock 1983
Massachusetts Plymouth Rock Historical rock 1983
Massachusetts Roxbury Puddingstone (Roxbury Conglomerate) Rock or rock emblem 1983
Michigan [ None ]    
Minnesota [ None ]    
Mississippi [ None ]    
Missouri Mozarkite Official rock and lithologic emblem 1967
Montana [ None ]    
Nebraska Chalcedony stone, Prairie agate State rock 1943
Nevada Sandstone Official state rock 1987
New Hampshire Granite Official state rock 1985
New Jersey [ None ]    
New Mexico [ None ]    
New York [ None ]    
North Carolina Granite Official State rock 1979
North Dakota [ None ]    
Ohio [ None ]    
Oklahoma Barite Rose (Rose rock) Official rock 1968
Oregon Thunderegg Official rock 1965
Pennsylvania [ None ]    
Rhode Island Cumderlandite Official state rock 1966
South Carolina [ None ]    
South Dakota [ None ]    
Tennessee Calcium carbonate (Limestone) Official state rock 1979
Texas [ None ]    
Utah Coal State rock 1991
Vermont Marble State rock 1992
Vermont Granite State rock 1992
Vermont Slate State rock 1992
Virginia [ None ]    
Washington [ None ]    
West Virginia Bituminous coal Official state rock 2009
Wisconsin Red granite State rock 1971
Wyoming [ None ]    
Rocks and Minerals

Rocks and Minerals, written and edited by Caroline Bingham. 48 pages. Publisher: DK CHILDREN; 1st edition (January 2004) Reading level: Ages 5-8.

Eye Wonder Rocks and Minerals introduces geologic elements to budding scientists - Did you know that the amount of gold in any material is measured in carats and that 24-carat gold is pure gold? Find out facts like this and much more in this fascinating guide to rocks and minerals.

Rocks and Minerals (DK Pocket Series)

Rocks and Minerals (DK Pocket Series), by Dorling Kindersley, Ltd. 160 pages. Publisher: DK Publishing, Inc.; Revised edition (June 2003) Reading level: Ages 10-17.

Minerals are solid mixtures of chemicals that each have a unique set of characteristics - just like a fingerprint. Find out how these minerals bind together to form rocks and much, much more.

Collecting Rocks, Gems & Minerals: Easy Identification

Collecting Rocks, Gems & Minerals: Easy Identification, by Patti Polk. 272 pages. Publisher: Krause Publications (May 13, 2010)

Collecting Rocks, Gems and Minerals takes you from having a casual interest in rocks to being a true collector, and it serves as the only book of its kind to have values for these beautiful offerings from nature. The easy-to-use, and durable design of this book makes it the perfect guide to use out in the field, and it:

  • Covers both lapidary and mineral display materials
  • Includes organics such as amber, bone, coral, pearl and shell
  • Lists chemical group, system, hardness, opacity, fracture, specific gravity and more
  • Provides values and tips for locating, buying and collecting
  • Contains 650+ full-color photos
Rocks & Minerals (Smithsonian Handbooks)

Rocks & Minerals (Smithsonian Handbooks), by Chris Pellant. 256 pages. Publisher: Dorling Kindersley (September 1, 2010)

600 incredible photos, precise annotations and detailed descriptions - from the distinguishing features of rocks to which crystal system a mineral belongs to - will help you identify different rocks and minerals quickly and easily. Covers everything from what rocks or minerals are, how they are classified to how to start a collection.

Perfect for rocks and mineral lovers - a comprehensive guide for collectors.