Unlike state seals or state flags, not all states have a state gemstone or mineral. Here is what I could find:
State Gem or Gemstones Mineral Rock or Stone
Alabama Star Blue Quartz Hematite Marble
Alaska Jade Gold -
Arizona Turquoise Fire Agate Petrified Wood
Arkansas Diamond Quartz Crystal Bauxite
California Benitoite Native Gold Serpentine
Colorado Aquamarine Rhodochrosite -
Connecticut - Garnet -
Delaware - Sillimanite -
Florida Moonstone - Agatized Coral
Georgia Quartz Staurolite -
Hawaii Black Coral - -
Idaho Star Garnet - -
Illinois - Fluorite -
Indiana - - Limestone
Iowa - - Geode
Kansas - - -
Kentucky Fortification Agate w/ red, black and yellow banding Coal -
Louisiana Agate - Petrified Palm
Maine Tourmaline - -
Maryland Patuxent River Stone - -
Massachusetts Rhodonite Babingtonite Roxbury Pudding Stone (Jasper)
Michigan Chlorastrolite (aka greenstone aka Isle Royal Green Stone) - Petoskey Stone
Minnesota Lake Superior Agate - -
Mississippi - - Petrified Wood
Missouri - Galena (Lead) Mozarkite
Montana Yogo Sapphire and Agate - -
Nebraska Blue Agate - Prairie Agate
NevadaNevada Turquoise or Virgin Valley Black Fire Opal Silver Sandstone
New Hampshire Smokey Quartz Beryl Conway Granite
New Jersey - - -
New Mexico Turquoise - -
New York Garnet, Black Button Tourmaline, Moonstone Hematite -
N Carolina Emerald - Granite/Unakite
N Dakota - - Teredo Wood
Ohio Ohio Flint - -
Oklahoma - - Barite Rose
Oregon Sunstone (heliolite) - Thunderegg
Pennsylvania - -Trilobite
Rhode Island - Bowenite Cumberlandite
S Carolina Amethyst - Blue Granite
S Dakota Fairburn Agate Rose Quartz -
Tennessee Tennessee Pearl - Agate, Tennessee Limestone
Texas Topaz - Petrified Palmwood
Utah Topaz - Coal
Vermont - Talc & Grossular Garnet Granite, Marble, Slate
Virginia - - Chesapecten jeffersonius (Fossil)
Washington Petrified Wood - -
West Virginia Lithostrotionella - -
Wisconsin Ruby Galena Red Granite
Wyoming Jade - -

Where Gemstones are Found in the US
American Patriotic Gifts

Related Books

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US State Gem Info: