# List of U.S. state minerals, rocks, stones and gemstones

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.

## Table of minerals, rocks, stones and gemstones

| 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 | Gold (1965); California's nickname is the Golden State | Serpentinite (1965) | Benitoite (1985) |
| Colorado | Rhodochrosite (2002) | Yule marble (2004) | Aquamarine (1971) |
| Connecticut | Almandine garnet (1977) | | |
| Delaware | Sillimanite (1977) | | |
| Florida | | 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 | | | Patuxent River stone agate (2004) |
| Massachusetts | 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) | 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 | | |
| New Mexico | | | Turquoise (1967) |
| New York | | | Garnet (1969) |
| North Carolina | Gold (2011) | | Emerald (1973) |
| North Dakota | | | |
| Ohio | | | Ohio flint (1965) |
| Oklahoma | Crystal: Hourglass selenite (2005) | Barite Rose (1968) | |
| Oregon | 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) and State 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 | | Bituminous coal (2009) | Mississippian Lithostrotionella fossil coral (1990) |
| Wisconsin | Galena (1971) | Red granite (1971) | |
| Wyoming | | | Wyoming nephrite jade (1967) |