Official State Rocks, Minerals, Gems, Etc.
| Official rocks, minerals, gemstones listed by state. (List by state or year) | |||
State |
Name | Designated as | Year |
|---|---|---|---|
| Alabama | Hematite (Red iron ore) | Official mineral | 1967 |
| Alabama | Marble | Official rock | 1969 |
| Alabama | Star Blue Quartz | Official gemstone | 1990 |
| Alaska | Jade | Official state gem | 1968 |
| Alaska | Gold | Official state mineral | 1968 |
| Arizona | Turquoise | Official state gemstone | 1974 |
| Arkansas | Diamond | Official state gem | 1967 |
| Arkansas | Quartz crystal | Official state mineral | 1967 |
| Arkansas | Bauxite | Official state rock | 1967 |
| California | Native gold | Official state mineral and mineralogic emblem | 1965 |
| California | Serpentine | Official State rock and lithologic emblem | 1965 |
| California | Benitoite | Official state gemstone | 1985 |
| Colorado | Aquamarine | State gemstone | 1971 |
| Colorado | Rhodochrosite | State mineral | 2002 |
| Colorado | Yule marble | State rock | 2004 |
| Connecticut | Garnet | State mineral | 1977 |
| Delaware | Sillimanite | Official state mineral | 1977 |
| Florida | Moonstone | Florida state gem | 1970 |
| Florida | Agatized coral | Florida state stone | 1979 |
| Georgia | Quartz | State of Georgia's official gem | 1976 |
| Georgia | Staurolite | State of Georgia's official mineral | 1976 |
| Hawaii | Black coral | Official gem | 1987 |
| Idaho | Star garnet | Official state stone, or gem | 1967 |
| Illinois | Calcium flouride (Flourite) | Official state mineral | 1965 |
| Indiana | Limestone (Salem limestone) | Official stone | 1971 |
| Iowa | Geode | State rock | 1967 |
| Kansas | [ None ] | ||
| Kentucky | Freshwater-pearl | State gemstone | 1986 |
| Kentucky | Coal | Official mineral | 1998 |
| Kentucky | Kentucky agate | Official rock | 2000 |
| Louisiana | Agate | Official state gemstone
Official state mineral |
1976
2011 |
| Louisiana | Cabochon cut gemstone, derived from Crassostrea virginica mollusk | Official state gemstone | 2011 |
| Maine | Tourmaline | Official mineral | 1971 |
| Maryland | Patuxent River Stone | State gem | 2004 |
| Massachusetts | Babingtonite | Mineral or mineral emblem | 1971 |
| Massachusetts | Rhodonite | Gem or gem emblem | 1979 |
| Massachusetts | Granite | Building and monument stone | 1983 |
| Massachusetts | Dighton Rock | Explorer rock | 1983 |
| Massachusetts | Plymouth Rock | Historical rock | 1983 |
| Massachusetts | Roxbury Puddingstone (Roxbury Conglomerate) | Rock or rock emblem | 1983 |
| Michigan | Petoskey stone | State stone | 1965 |
| Michigan | Chlorastrolite | State gem | 1972 |
| Minnesota | Lake Superior agate | Official gemstone | 1969 |
| Mississippi | Petrified wood | State stone | 1976 |
| Missouri | Galena | Official mineral | 1967 |
| Missouri | Mozarkite | Official rock and lithologic emblem | 1967 |
| Montana | Montana agate | Official Montana state gem stone | 1969 |
| Montana | Sapphire | Official Montana state gem stone | 1969 |
| Nebraska | Chalcedony stone, Blue agate | State gem stone | 1943 |
| Nebraska | Chalcedony stone, Prairie agate | State rock | 1943 |
| Nevada | Virgin Valley black fire opal | Official state precious gemstone | 1987 |
| Nevada | Nevada turquoise | Official state semiprecious gemstone | 1987 |
| Nevada | Sandstone | Official state rock | 1987 |
| New Hampshire | Granite | Official state rock | 1985 |
| New Hampshire | Beryl | Official state mineral | 1985 |
| New Hampshire | Smoky quartz | Official state gem | 1985 |
| New Jersey | [ None ] | ||
| New Mexico | Turquoise | Official gem | 1967 |
| New York | Garnet | Official gem | 1969 |
| North Carolina | Emerald | Official State precious stone | 1973 |
| North Carolina | Granite | Official State rock | 1979 |
| North Carolina | Gold Aurum | Official state mineral | 2011 |
| North Dakota | [ None ] | ||
| Ohio | Ohio flint (Crypto-crystalline variety of quartz) | Official gem stone | 1965 |
| Oklahoma | Barite Rose (Rose rock) | Official rock | 1968 |
| Oklahoma | Hourglass Selenite Crystal | Official crystal | 2005 |
| Oregon | Thunderegg | Official rock | 1965 |
| Oregon | Sunstone | Official gemstone | 1987 |
| Pennsylvania | [ None ] | ||
| Rhode Island | Cumderlandite | Official state rock | 1966 |
| Rhode Island | Bowenite | Official state mineral | 1966 |
| South Carolina | Amethyst | Official gem stone | 1969 |
| South Carolina | Blue granite | Official stone | 1969 |
| South Dakota | Fairburn agate | Official state gemstone | 1966 |
| South Dakota | Rose quartz | Official state mineral stone | 1966 |
| South Dakota | Black hills gold | Official jewelry | 1988 |
| Tennessee | Tennessee pearl | Official state gem | 1979 |
| Tennessee | Calcium carbonate (Limestone) | Official state rock | 1979 |
| Tennessee | Agate | Official state mineral | 2009 |
| Texas | Blue topaz | State gemstone | 1969 |
| Texas | Petrified palmwood | State stone | 1969 |
| Texas | Silver | Precious metal | 2007 |
| Utah | Topaz | State gem | 1969 |
| Utah | Coal | State rock | 1991 |
| Utah | Copper | State mineral | 1994 |
| Vermont | Grossular garnet | State gem | 1992 |
| Vermont | Marble | State rock | 1992 |
| Vermont | Granite | State rock | 1992 |
| Vermont | Slate | State rock | 1992 |
| Vermont | Talc | State mineral | 1992 |
| Virginia | Neslsonite | Rock | 2016 |
| Washington | Petrified wood | Official gem | 1975 |
| West Virginia | Calcedony | State gem | 1990 |
| West Virginia | Bituminous coal | Official state rock | 2009 |
| Wisconsin | Galena (Lead sulfide) | State mineral | 1971 |
| Wisconsin | Red granite | State rock | 1971 |
| Wyoming | Jade | Official gemstone | 1967 |
Rocks and Minerals, written and edited by Caroline Bingham. 48 pages. Publisher: DK CHILDREN; 1st edition (January 2004) Reading level: Ages 5-8. Eye Wonder Rocks and Minerals introduces geologic elements to budding scientists - Did you know that the amount of gold in any material is measured in carats and that 24-carat gold is pure gold? Find out facts like this and much more in this fascinating guide to rocks and minerals. |
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Rocks and Minerals (DK Pocket Series), by Dorling Kindersley, Ltd. 160 pages. Publisher: DK Publishing, Inc.; Revised edition (June 2003) Reading level: Ages 10-17. Minerals are solid mixtures of chemicals that each have a unique set of characteristics - just like a fingerprint. Find out how these minerals bind together to form rocks and much, much more. |
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Collecting Rocks, Gems & Minerals: Easy Identification, by Patti Polk. 272 pages. Publisher: Krause Publications (May 13, 2010) Collecting Rocks, Gems and Minerals takes you from having a casual interest in rocks to being a true collector, and it serves as the only book of its kind to have values for these beautiful offerings from nature. The easy-to-use, and durable design of this book makes it the perfect guide to use out in the field, and it:
|
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Rocks & Minerals (Smithsonian Handbooks), by Chris Pellant. 256 pages. Publisher: Dorling Kindersley (September 1, 2010) 600 incredible photos, precise annotations and detailed descriptions - from the distinguishing features of rocks to which crystal system a mineral belongs to - will help you identify different rocks and minerals quickly and easily. Covers everything from what rocks or minerals are, how they are classified to how to start a collection. Perfect for rocks and mineral lovers - a comprehensive guide for collectors. |
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