| Alabama: | Star Blue Quartz, Hematite | |
| Alaska: | Jade | |
| Arizona: | Turquoise, Fire Agate | |
| Arkansas: | Diamond, Quartz | |
| California: | Benitoite | |
| Colorado: | Aquamarine, Rhodochrosite | |
| Connecticut: | Garnet | |
| Delaware: | Sillimanite | |
| Florida: | Moonstone | |
| Georgia: | Staurolite, Quartz | |
| Hawaii: | Black Coral | |
| Idaho: | Star Garnet | |
| Illinois: | Fluorite | |
| Kentucky: | Freshwater Pearl | |
| Louisiana: | Agate | |
| Maine: | Tourmaline | |
| Maryland: | Patuxent River Stone | |
| Massachusetts: | Rhodonite, Babingtonite | |
| Michigan: | Chlorastrolite (Greenstone) | |
| Minnesota: | Lake Superior Agate | |
| Montana: | Montana Agate, Yogo Sapphire | |
| Nebraska: | Blue Agate | |
| Nevada: | Virgin Valley Black Fire Opal and Nevada Turquoise | |
| New Hampshire: | Smoky Quartz, Beryl | |
| New York: | Garnet, Black Button Tourmaline, Moonstone | |
| North Carolina: | Emerald | |
| Ohio: | Ohio Flint (variety of Quartz) | |
| Oregon: | Oregon Sunstone (Heliolite) | |
| Rhode Island: | Bowenite | |
| South Carolina: | Amethyst | |
| South Dakota: | Fairborn Agate, Rose Quartz | |
| Tennessee: | Tennessee Pearl | |
| Texas: | Texas Blue Topaz | |
| Utah: | Topaz | |
| Vermont: | Grossular Garnet | |
| Washington: | Petrified Wood | |
| West Virginia: | Silicified Mississippian Fossil Coral | |
| Wisconsin: | Ruby | |
| Wyoming: | Jade (Nephrite) |