OFFICIAL MINERALS, GEMSTONES, & ROCKS
OF THE U.S.A. STATES

Below is a list of the official minerals, gemstones, and rocks of the various U.S.A. states. Eleven states have all three; five states have none. Twelve states have only an official gemstone, two states have only a rock, two more only a mineral. Of course, the members of the various state legislatures don't feel constrained to using actual minerals, gemstones, and rocks, let alone use them correctly, so the following entries are somewhat arbitrary and inconsistent. It's almost like one state senator said, "It's not a gemstone," but another replied, "If petrified wood is good enough for my bolo, it's good enough to be our state gemstone."


STATEMINERALGEMSTONEROCK
ALABAMAHematiteStar Blue Quartz Marble
ALASKAGold Nephrite (Jade) 
ARIZONACopper Turquoise 
ARKANSASQuartz DiamondBauxite
CALIFORNIAGold Benitoite Serpentine
COLORADO Rhodochrosite AquamarineYule Marble
CONNECTICUT Almandine Brownstone (an iron-stained sandstone)
DELAWARE Sillimanite  
FLORIDA  MoonstoneAgatized Coral
GEORGIA Staurolite Quartz 
HAWAII Black Coral 
IDAHO Star Garnet 
ILLINOIS Fluorite  
INDIANA  Salem Limestone
IOWA   Quartz Geode
KANSAS   
KENTUCKYCoalFreshwater PearlKentucky Agate
LOUSIANA  Agate 
MAINE  Tourmaline 
MARYLAND Patuxent River Stone agate 
MASSACHUSETTS Babingtonite Rhodonite Roxbury Puddingstone
MICHIGAN ChlorastrolitePetoskey Stone (fossilized coral)
MINNESOTA Lake Superior Agate 
MISSISSIPPI  Petrified Wood
MISSOURIGalena Mozarkite (chert)
MONTANA  Sapphire and Agate 
NEBRASKA Blue AgatePrairie Agate
NEVADASilverBlack Fire Opal Sandstone
NEW HAMPSHIREBeryl Smoky Quartz Granite
NEW JERSEY   
NEW MEXICO  Turquoise 
NEW YORK  Garnet 
NORTH CAROLINA  Emerald Granite
NORTH DAKOTA   
OHIO Ohio Flint 
OKLAHOMA  Rose Rock (barite)
OREGON Oregon SunstoneThunderegg (Agate)
PENNSYLVANIA   
RHODE ISLANDBowenite (Serpentine)  Cumberlandite
SOUTH CAROLINA  AmethystBlue Granite
SOUTH DAKOTA Rose Quartz Fairburn Agate 
TENNESSEE Tennessee River Pearl Limestone & Tennessee Paint Rock Agate
TEXASSilverTexas Blue TopazPetrified Palmwood
UTAHCopper Topaz Coal
VERMONTTalc Grossular Garnet Granite & Marble & Slate
VIRGINIA   
WASHINGTON Petrified Wood 
WEST VIRGINIA Mississippian Fossil Coral Bituminous Coal
WISCONSINGalena  Red Granite
WYOMING Wyoming Nephrite (Jade) 
Classes of Minerals
CARBONATES
ELEMENTS
GEMSTONES
HALIDES
MINERALOIDS
OXIDES
PHOSPHATES
SILICATES
SULFATES
SULFIDES

 

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