State |
Gem or Gemstones |
Mineral |
Rock or Stone |
| Alabama | Star Blue Quartz | Hematite | Marble |
| Alaska | Jade | Gold | None |
| Arizona | Turquoise | Fire Agate | Petrified Wood |
| Arkansas | Diamond | Quartz Crystal | Bauxite |
| California | Benitoite | Native Gold | Serpentine |
| Colorado | Aquamarine | Rhodochrosite | None |
| Connecticut | Garnet | None | None |
| Delaware | None | None | Sillimanite |
| Florida | Moonstone | None | Agatized Coral |
| Georgia | Quartz | Staurolite | None |
| Hawaii | Black Coral | None | None |
| Idaho | Star Garnet | None | None |
| Illinois | None | Fluorite | None |
| Indiana | None | None | Limestone |
| Iowa | None | None | Geode |
| Kansas | None | None | None |
| Kentucky | Fortification Agate w/ red, black and yellow banding | Coal | None |
| Louisiana | Agate | None | Petrified Palm |
| Maine | Tourmaline | None | None |
| Maryland | None | None | None |
| Massachusetts | Rhodonite | Babingtonite | Roxbury Pudding Stone (Jasper) |
| Michigan | Chlorastrolite (aka greenstone aka Isle Royal Green Stone) | None | Petoskey Stone |
| Minnesota | Lake Superior Agate | None | None |
| Mississippi | None | None | Petrified Wood |
| Missouri | None | Galena (Lead) | Mozarkite |
| Montana | Yogo Sapphire and Agate | None | None |
| Nebraska | Blue Agate | None | Prairie Agate |
| Nevada | Peridot or Nevada Turquoise or Virgin Valley Black Fire Opal | Silver | Sandstone |
| New Hampshire | Smokey Quartz | Beryl | Conway Granite |
| New Jersey | None | None | None |
| New Mexico | Turquoise | None | None |
| New York | Garnet, Black Button Tourmaline, Moonstone | Hematite | None |
| N Carolina | Emerald | None | Granite/Unakite |
| N Dakota | None | None | Teredo Wood |
| Ohio | Ohio Flint | None | None |
| Oklahoma | None | None | Barite Rose |
| Oregon | Sunstone (heliolite) | None | Thunderegg |
| Pennsylvania | None | None | Trilobite |
| Rhode Island | None | Bowenite | Cumberlandite |
| S Carolina | Amethyst | None | Blue Granite |
| S Dakota | Fairburn Agate | Rose Quartz | None |
| Tennessee | Tennessee Pearl | None | Agate, Tennessee Limestone |
| Texas | Topaz | None | Petrified Palmwood |
| Utah | Topaz | None | Coal |
| Vermont | None | Talc & Grossular Garnet | Granite, Marble, Slate |
| Virginia | None | None | Chesapecten jeffersonius (Fossil) |
| Washington | Petrified Wood | None | None |
| West Virginia | Lithostrotionella | None | None |
| Wisconsin | Ruby | Galena | Red Granite |
| Wyoming | Jade | None | None |