List of U.S. state minerals, rocks, stones and gemstones facts for kids

Kids Encyclopedia Facts

Some American states have made a state mineral, rock, stone or gemstone Not every state has an official state mineral, rock, stone and/or gemstone, however.

In the chart below the year in parentheses are the year when that mineral, rock, stone or gemstone was officially made a State symbol or emblem.

State by state listing

State Mineral Rock or Stone Gemstone
Alabama
HematiteUSGOV
Hematite (1967)
MarbleUSGOV
Marble (1969)
Statestarquartz
Star Blue Quartz (1990)
Alaska  
Jadestein
Nephrite Jade
Arizona
USDA Mineral Copper 93v3957
Copper (Arizona's nickname is "the Copper State")
 
Arkansas
BauxiteUSGOV
Bauxite (1967)
California
GoldNuggetUSGOV
Gold California's nickname is the Golden State
SerpentineUSGOV
Serpentine (1965)
Benitoite new
Benitoite (1985)
Colorado
The Searchlight Rhodochrosite Crystal
Rhodochrosite (2002)
DSCN2642 marbleblocksinmarble 600
Yule marble (2004)
AguamarinhaEZ
Aquamarine (1971)
Connecticut
GarnetCrystalUSGOV
Almandine Garnet (1977)
 
Delaware
Sillimanite
Sillimanite
   
Florida  
MoonstoneGem
Moonstone (1970)
Georgia
Staurolit, Madagaskar
Staurolite (1976)
 
Quartz rose GeorgiaHoggMine13
Quartz (1976)
Hawaiʻi    
Blackcoral colony 600
Black coral
Idaho    
Idahostargarnet
Star garnet (1967)
Illinois
Fluorite with Iron Pyrite
Fluorite (1965)
   
Indiana    
Iowa  
Geode angle 300x267
quartz Geode (1967)
 
Kansas      
Kentucky
Coal
Coal (1998)
Freshadama
Freshwater pearl (1986)
Louisiana    
Unknown Polished Rock Macro 2
Agate (1976)
Maine    
TourmalineUSGOV
Tourmaline
Maryland    
Agatetumbledriverstone
Patuxent River Stone agate (2004)
Massachusetts
Babingtonite avec Prenite USA
Babingtonite (1971)
Rodonita2EZ
Rhodonite (1979)
Michigan  
Petoskey stone Hexagonaria percarinata 2
Petoskey stone fossilized coral (1965)
Greenstone2
Chlorastrolite (aka Isle Royale greenstone 1972)
Minnesota    
Mississippi    
Missouri
Mozarkite
Mozarkite (1967)
 
Montana    
Sapphiremontanarockcr
Montana Sapphire

and
Montana Moss Agate
Montana Agate
Nebraska  
Agatetumbledmidwest
Prairie agate (1967)
Agatenebraskablue
Blue agate (1967)
Nevada
SilverUSGOV
Silver Nevada's nickname is the Silver State
Sandstone(quartz)USGOV
Sandstone (1987)
Virginvalleyblackopal
Precious Gemstone: Black fire opal

Turq mcGuin bunker
Semiprecious Gemstone: Turquoise
New Hampshire
Beryl variety Vorobievite Beryllium cesium aluminum silicate Raymond New Hampshire 2194
Beryl (1985)
Old Man of the Mountain 4-26-03
Granite (1985) New Hampshire's nickname is the Granite State
Quartz smokey New Hampshire15
Smoky quartz (1985)
New Jersey      
New Mexico    
Turquoise.pebble.700pix
Turquoise (1967)
New York    
Garnet Group-Pyrope Iron aluminum silicate Barton Mines, Gore Mountain, Warren County, New York 2861
Garnet (1967)
North Carolina
GoldNuggetUSGOV
Gold (2011)
Granite softgreen
Granite (1979)
Béryl var. émeraude sur quartz (Carnaiba Mine Bahia - Brésil)
Emerald (1973)
North Dakota      
Ohio    
Flintohio
Ohio flint (1965)
Oklahoma  
Sandrose 2004 03
Rose Rock (Barite)
 
Oregon  
ThundereggOR
Thunderegg agate (1965)
Labradoriteoregonsunstone
Oregon sunstone labradorite (1987)
Pennsylvania      
Rhode Island
Serpentine-bowenite
Bowenite serpentine (1966)
Cumberlandite
Cumberlandite (1966)
 
South Carolina  
Granite Yosemite P1160483
Blue granite (1969)
Amethyst Quartz Macro 1
Amethyst (1969)
South Dakota  
Agatetumblednorthmidwestusa
Fairburn agate (1966)
Tennessee  
Limestone with fossils01
Limestone (1979)

and
Tennesseepaintrock
Tennessee Paint Rock Agate (1969)
Freshadama
Tennessee River Pearl (1979)
Texas
SilverUSGOV
Precious Metal: Silver (2007)
Fossilpalmsouthernusa
Oligocene petrified palmwood (1969)
TOPAZE4
Gemstone: Texas blue topaz (1969)

Texasstargem
Gem Cut: "Lone Star Cut" (1977)
Utah
CopperMineralUSGOV
Copper (1994)
Coal anthracite
Coal (1991)
Topas - Utah-USA
Topaz (1969)
Vermont
Granite detail
Granite (1992)

and
Vermont State Capitol
Marble (1992)

and
SlateUSGOV
Slate (1992)
Virginia      
Washington    
West Virginia  
Coal anthracite
Bituminous Coal (2009)
Agatized lithostrotionella coral07
Mississippian Lithostrotionella fossil coral (1990)
Wisconsin
Itu granite
Red granite (1971)
 
Wyoming    

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List of U.S. state minerals, rocks, stones and gemstones Facts for Kids. Kiddle Encyclopedia.