Official gems, minerals and rocks symbols of every U.S. state mapped

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Governors of U.S. states in the U.S., which have notable mineral deposits, frequently create a state mineral, gems, and rocks to encourage engagement in their natural resources, tourism, or history. However, not each U.S. state has an official state mineral, rock, or gem.

Aubri, Esri Software Product Engineer, made a vivid map of official gems, mineral and rocks symbols of each U.S. state.

Below is the list of gems, minerals, and rocks, which have become as state symbol or emblem.

Alabama

Mineral	Rock	Gem
Hematite	Marble	Star blue quartz

Alaska

Mineral	Rock	Gem
Gold	–	Nephrite

Arizona

Mineral	Rock	Gem
Wulfenite	–	Turquoise

Arkansas

Mineral	Rock	Gem
Quartz	Bauxite	Diamond

California

Mineral	Rock	Gem
Gold	Serpentine	Benitoite

Colorado

Mineral	Rock	Gem
Rhodochrosite	Yule Marble	Aquamarine

Connecticut

Mineral	Rock	Gem
Garnet	–	–

Delaware

Mineral	Rock	Gem
Sillimanite	–	–

Florida

Mineral	Rock	Gem
–	Agatized coral	Moonstone

Georgia

Mineral	Rock	Gem
Staurolite		Quartz

Hawaii

Mineral	Rock	Gem
–	–	Black corlal

Idaho

Mineral	Rock	Gem
–	–	Star Garnet

Illinois

Mineral	Rock	Gem
Fluorite	–	–

Indiana

Mineral	Rock	Gem
–	Salem limestone	–

Iowa

Mineral	Rock	Gem
–	Geode	–

Kansas

Mineral	Rock	Gem
Galena	Greenhorn limestone	Jelenite

Kentucky

Mineral	Rock	Gem
Coal	Kentucky agate	Fresh water pearl

Louisiana

Mineral	Rock	Gem
Agate	–	Lapearlite

Maine

Mineral	Rock	Gem
–	–	Tourmaline

Maryland

Mineral	Rock	Gem
–	–	Patuxent River stone

Massachusetts

Mineral	Rock	Gem
Babingtonite	Roxbury Conglomerate	Rhodonite

Michigan

Mineral	Rock	Gem
–	Petoskey stone	Chlorastrolite

Minnesota

Mineral	Rock	Gem
–	–	Lake Superior agate

Mississippi

Mineral	Rock	Gem
–	Petrified wood	–

Missouri

Mineral	Rock	Gem
Galena	Mozarkite	–

Montana

Mineral	Rock	Gem
–	–	Sapphire

Nebraska

Mineral	Rock	Gem
–	Prairie agate	Blue chalcedony

Nevada

Mineral	Rock	Gem
Silver	Sandstone	Black fire opal

New Hampshire

Mineral	Rock	Gem
Beryl	Granite	Smoky quartz

New Jersey

Mineral	Rock	Gem
–	–	–

New Mexico

Mineral	Rock	Gem
–	–	Turquoise

New York

Mineral	Rock	Gem
–	–	Garnet

North Carolina

Mineral	Rock	Gem
Gold	Granite

North Dakota

Mineral	Rock	Gem
–	–	–

Ohio

Mineral	Rock	Gem
–	–	Flint

Oklahoma

Mineral	Rock	Gem
Hourglass selenite	Desert rose	–

Oregon

Mineral	Rock	Gem
Oregonite	Thunderegg	Oregon sunstone

Pennsylvania

Mineral	Rock	Gem
–	–	–

Rhode Island

Mineral	Rock	Gem
Bowenite	Cumberlandite	–

South Carolina

Mineral	Rock	Gem
–	Granite	Amethyst

South Dakota

Mineral	Rock	Gem
Rose quartz	–	Fairburn agate

Tennessee

Mineral	Rock	Gem
Agate	Limestone	Fresh water pearl

Texas

Mineral	Rock	Gem
Silver	Palmoxylon	Topaz

Utah

Mineral	Rock	Gem
Copper	Coal	Topaz

Vermont

Mineral	Rock	Gem
Talc	Granite	Grossular

Virginia

Mineral	Rock	Gem
–	Nelsonite	–

Washington

Mineral	Rock	Gem
–	Petrified wood	–

West Virginia

Mineral	Rock	Gem
–	Bituminous coal	Fossil coral Lithostrotionella

Wisconsin

Mineral	Rock	Gem
Galena	Granite	–

Wyoming

Mineral	Rock	Gem
–	–	Nephrite jade

To learn more about gems, minerals and rocks have a look at the following books and atlases:

• The Rockhounding Encyclopedia: The Gem Hunter’s Guide to Identifying and Collecting Over 100 Unique Gemstones, Minerals, Fossils & Geodes | Featuring America’s Top 500 Rockhounding Sites
• Rocks and Minerals in Thin Section: A Colour Atlas
• Rocks & Minerals (DK Handbooks)