List of U.S. state minerals, rocks, stones and gemstones
Updated: 11/6/2025, 2:18:49 AM Wikipedia source
Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone or gemstone to promote interest in their natural resources, history, tourism, etc. Not every state has an official state mineral, rock, stone and/or gemstone, however. In the chart below, a year which is listed within parentheses represents the year during which that mineral, rock, stone or gemstone was officially adopted as a state symbol or emblem.
Tables
· Table of minerals, rocks, stones and gemstones
Alabama
Alabama
State, federal district, territory
Alabama
Mineral
Hematite (1967)
Rock or stone
Marble (1969)
Gemstone
Star blue quartz (1990)
Alaska
Alaska
State, federal district, territory
Alaska
Mineral
Gold (1968)
Gemstone
Nephrite jade (1968)
Arizona
Arizona
State, federal district, territory
Arizona
Mineral
Wulfenite (2017)
Gemstone
Turquoise (1974)
Arkansas
Arkansas
State, federal district, territory
Arkansas
Mineral
Quartz (1967)
Rock or stone
Bauxite (1967)
Gemstone
Diamond (1967)
California .mw- [A]
California .mw- [A]
State, federal district, territory
California .mw- [A]
Mineral
Gold (1965); California's nickname is the Golden State
Rock or stone
Serpentinite (1965)
Gemstone
Benitoite (1985)
Colorado[B]
Colorado[B]
State, federal district, territory
Colorado[B]
Mineral
Rhodochrosite (2002)
Rock or stone
Yule marble (2004)
Gemstone
Aquamarine (1971)
Connecticut
Connecticut
State, federal district, territory
Connecticut
Mineral
Almandine garnet (1977)
Delaware
Delaware
State, federal district, territory
Delaware
Mineral
Sillimanite (1977)
Florida[C]
Florida[C]
State, federal district, territory
Florida[C]
Rock or stone
Agatized Coral (1979)
Gemstone
Moonstone (1970)
Georgia
Georgia
State, federal district, territory
Georgia
Mineral
Staurolite (1976)
Gemstone
Quartz (1976)
Hawaiʻi
Hawaiʻi
State, federal district, territory
Hawaiʻi
Gemstone
Black coral (1987)
Idaho
Idaho
State, federal district, territory
Idaho
Gemstone
Star garnet (1967)
Illinois
Illinois
State, federal district, territory
Illinois
Mineral
Fluorite (1965)
Rock or stone
Dolostone (2022)
Indiana
Indiana
State, federal district, territory
Indiana
Rock or stone
Salem limestone (1971)
Iowa
Iowa
State, federal district, territory
Iowa
Rock or stone
Geode (1967)
Kansas
Kansas
State, federal district, territory
Kansas
Mineral
Galena (2018)
Rock or stone
Greenhorn Limestone, from which the Kansas Stone Posts were cut. (2018)
Gemstone
Jelenite, a form of amber (2018)
Kentucky
Kentucky
State, federal district, territory
Kentucky
Mineral
Coal (1998)
Rock or stone
Kentucky agate (2000)
Gemstone
Freshwater pearl (1986)
Louisiana
Louisiana
State, federal district, territory
Louisiana
Mineral
Agate (2011)
Gemstone
Lapearlite (Eastern oyster shell) (2011)
Maine
Maine
State, federal district, territory
Maine
Rock or stone
Granitic pegmatite (2023)
Gemstone
Tourmaline (1971)
Maryland
Maryland
State, federal district, territory
Maryland
Mineral
Chromite (2025)
Gemstone
Patuxent River stone agate (2004)
Massachusetts[D]
Massachusetts[D]
State, federal district, territory
Massachusetts[D]
Mineral
Babingtonite (1971)
Rock or stone
Roxbury puddingstone (1983)
Gemstone
Rhodonite (1979)
Michigan
Michigan
State, federal district, territory
Michigan
Rock or stone
Petoskey stone fossilized coral (1965)
Gemstone
Chlorastrolite (aka Isle Royale greenstone) (1972)
Minnesota
Minnesota
State, federal district, territory
Minnesota
Gemstone
Lake Superior agate (1969)
Mississippi
Mississippi
State, federal district, territory
Mississippi
Rock or stone
Petrified wood (1976)
Gemstone
Mississippi Opal (2023)
Missouri
Missouri
State, federal district, territory
Missouri
Mineral
Galena (1967); Missouri's nickname is the Lead State
Rock or stone
Mozarkite (1967)
Montana
Montana
State, federal district, territory
Montana
Gemstone
Sapphire (1969)and Montana Agate (1969)
Nebraska
Nebraska
State, federal district, territory
Nebraska
Rock or stone
Prairie agate (1967)
Gemstone
Blue chalcedony (1967)
Nevada
Nevada
State, federal district, territory
Nevada
Mineral
Metal: Silver (1977); Nevada's nickname is the Silver State
Rock or stone
Sandstone (1987)
Gemstone
Precious Gemstone: Virgin Valley black fire opal (1987) Semiprecious Gemstone: Nevada turquoise (1987)
New Hampshire
New Hampshire
State, federal district, territory
New Hampshire
Mineral
Beryl (1985)
Rock or stone
Granite (1985); New Hampshire's nickname is the Granite State
Gemstone
Smoky quartz (1985)
New Jersey
New Jersey
State, federal district, territory
New Jersey
Mineral
Franklinite (2023)
New Mexico
New Mexico
State, federal district, territory
New Mexico
Gemstone
Turquoise (1967)
New York
New York
State, federal district, territory
New York
Gemstone
Garnet (1969)
North Carolina
North Carolina
State, federal district, territory
North Carolina
Mineral
Gold (2011)
Gemstone
Emerald (1973)
North Dakota
North Dakota
State, federal district, territory
North Dakota
Rock or stone
Knife River Flint (2025)
Ohio
Ohio
State, federal district, territory
Ohio
Gemstone
Ohio flint (1965)
Oklahoma
Oklahoma
State, federal district, territory
Oklahoma
Mineral
Crystal: Hourglass selenite (2005)
Rock or stone
Barite Rose (1968)
Oregon[E]
Oregon[E]
State, federal district, territory
Oregon[E]
Mineral
State Twin Minerals: Oregonite (2013)and Josephinite (2013)
Rock or stone
Thunderegg (1965)
Gemstone
Oregon sunstone labradorite (1987)
Pennsylvania
Pennsylvania
State, federal district, territory
Pennsylvania
Rhode Island
Rhode Island
State, federal district, territory
Rhode Island
Mineral
Bowenite serpentine (1966)
Rock or stone
Cumberlandite (1966)
South Carolina
South Carolina
State, federal district, territory
South Carolina
Rock or stone
Blue granite (1969)
Gemstone
Amethyst (1969)
South Dakota
South Dakota
State, federal district, territory
South Dakota
Mineral
Rose quartz (1966)
Gemstone
Fairburn agate (1966) andState Jewelry: Black Hills Gold
Tennessee
Tennessee
State, federal district, territory
Tennessee
Mineral
Agate (2009)
Rock or stone
Limestone (from 1979 to present)and formerlyTennessee agate (from 1969 until 2009)
Gemstone
Tennessee River Pearl (1979)
Texas
Texas
State, federal district, territory
Texas
Mineral
Precious Metal: Silver (2007)
Rock or stone
Oligocene petrified palmwood (1969)
Gemstone
Gemstone: Texas blue topaz (1969) Gem Cut: "Lone Star Cut" (1977)
Utah
Utah
State, federal district, territory
Utah
Mineral
Copper (1994)
Rock or stone
Coal (1991)
Gemstone
Topaz (1969)
Vermont
Vermont
State, federal district, territory
Vermont
Mineral
Talc (1991)
Rock or stone
Granite (1992) and Marble (1992) and Slate (1992)
Gemstone
Grossular garnet (1991)
Virginia
Virginia
State, federal district, territory
Virginia
Rock or stone
Nelsonite (2016)
Washington
Washington
State, federal district, territory
Washington
Gemstone
Petrified wood (1975)
West Virginia[F]
West Virginia[F]
State, federal district, territory
West Virginia[F]
Rock or stone
Bituminous coal (2009)
Gemstone
Mississippian Lithostrotionella fossil coral (1990)
Wisconsin
Wisconsin
State, federal district, territory
Wisconsin
Mineral
Galena (1971)
Rock or stone
Red granite (1971)
Wyoming
Wyoming
State, federal district, territory
Wyoming
Gemstone
Wyoming nephrite jade (1967)
| State, federal district, territory | Mineral | Rock or stone | Gemstone |
| Alabama | Hematite (1967) | Marble (1969) | Star blue quartz (1990) |
| Alaska | Gold (1968) | Nephrite jade (1968) | |
| Arizona | Wulfenite (2017) | Turquoise (1974) | |
| Arkansas | Quartz (1967) | Bauxite (1967) | Diamond (1967) |
| California [A] | Gold (1965); California's nickname is the Golden State | Serpentinite (1965) | Benitoite (1985) |
| Colorado[B] | Rhodochrosite (2002) | Yule marble (2004) | Aquamarine (1971) |
| Connecticut | Almandine garnet (1977) | ||
| Delaware | Sillimanite (1977) | ||
| Florida[C] | Agatized Coral (1979) | Moonstone (1970) | |
| Georgia | Staurolite (1976) | Quartz (1976) | |
| Hawaiʻi | Black coral (1987) | ||
| Idaho | Star garnet (1967) | ||
| Illinois | Fluorite (1965) | Dolostone (2022) | |
| Indiana | Salem limestone (1971) | ||
| Iowa | Geode (1967) | ||
| Kansas | Galena (2018) | Greenhorn Limestone, from which the Kansas Stone Posts were cut. (2018) | Jelenite, a form of amber (2018) |
| Kentucky | Coal (1998) | Kentucky agate (2000) | Freshwater pearl (1986) |
| Louisiana | Agate (2011) | Lapearlite (Eastern oyster shell) (2011) | |
| Maine | Granitic pegmatite (2023) | Tourmaline (1971) | |
| Maryland | Chromite (2025) | Patuxent River stone agate (2004) | |
| Massachusetts[D] | Babingtonite (1971) | Roxbury puddingstone (1983) | Rhodonite (1979) |
| Michigan | Petoskey stone fossilized coral (1965) | Chlorastrolite (aka Isle Royale greenstone) (1972) | |
| Minnesota | Lake Superior agate (1969) | ||
| Mississippi | Petrified wood (1976) | Mississippi Opal (2023) | |
| Missouri | Galena (1967); Missouri's nickname is the Lead State | Mozarkite (1967) | |
| Montana | Sapphire (1969)and Montana Agate (1969) | ||
| Nebraska | Prairie agate (1967) | Blue chalcedony (1967) | |
| Nevada | Metal: Silver (1977); Nevada's nickname is the Silver State | Sandstone (1987) | Precious Gemstone: Virgin Valley black fire opal (1987) Semiprecious Gemstone: Nevada turquoise (1987) |
| New Hampshire | Beryl (1985) | Granite (1985); New Hampshire's nickname is the Granite State | Smoky quartz (1985) |
| New Jersey | Franklinite (2023) | ||
| New Mexico | Turquoise (1967) | ||
| New York | Garnet (1969) | ||
| North Carolina | Gold (2011) | Emerald (1973) | |
| North Dakota | Knife River Flint (2025) | ||
| Ohio | Ohio flint (1965) | ||
| Oklahoma | Crystal: Hourglass selenite (2005) | Barite Rose (1968) | |
| Oregon[E] | State Twin Minerals: Oregonite (2013)and Josephinite (2013) | Thunderegg (1965) | Oregon sunstone labradorite (1987) |
| Pennsylvania | |||
| Rhode Island | Bowenite serpentine (1966) | Cumberlandite (1966) | |
| South Carolina | Blue granite (1969) | Amethyst (1969) | |
| South Dakota | Rose quartz (1966) | Fairburn agate (1966) andState Jewelry: Black Hills Gold | |
| Tennessee | Agate (2009) | Limestone (from 1979 to present)and formerlyTennessee agate (from 1969 until 2009) | Tennessee River Pearl (1979) |
| Texas | Precious Metal: Silver (2007) | Oligocene petrified palmwood (1969) | Gemstone: Texas blue topaz (1969) Gem Cut: "Lone Star Cut" (1977) |
| Utah | Copper (1994) | Coal (1991) | Topaz (1969) |
| Vermont | Talc (1991) | Granite (1992) and Marble (1992) and Slate (1992) | Grossular garnet (1991) |
| Virginia | Nelsonite (2016) | ||
| Washington | Petrified wood (1975) | ||
| West Virginia[F] | Bituminous coal (2009) | Mississippian Lithostrotionella fossil coral (1990) | |
| Wisconsin | Galena (1971) | Red granite (1971) |
References
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