List of U.S. state minerals, rocks, stones and gemstones
Table of minerals, rocks, stones and gemstones

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

Section Title: Table of minerals, rocks, stones and gemstones
Table Section Text: None

State federal district or territory	Mineral	Rock or stone	Gemstone

Alabama	A sparkling, metallic gray chunk of hematite on a blue background. Hematite (1967)	A chunk of pure white marble lies on a dark background. Marble (1969)	A bluish gray round cabochon of quartz showing a four rayed star effect under intense lighting. Star blue quartz (1990)

Alaska	An irregularly shaped nugget of native gold. Gold	An irregular chunk of celedon green jade. Nephrite jade

Arizona	An irregular piece of native copper on a green background. Copper (Arizona's nickname is "the Copper State")	A rough nodule of turquoise in brown matrix with a split face showing areas of intense turquoise blue. Turquoise

Arkansas	A cluster of clear, colorless quartz crystals. Quartz	A slab of bauxite displaying brown orbicular formations which are approximately the size of the one cent coin which lies on top of the slab.	Several white diamonds with brilliant cuts lie scattered across a white background. Diamond

California	An irregularly shaped nugget of native gold ore. Gold (California's nickname is "the Golden State")	A rough chunk of dark green serpentine with lighter veining. Serpentine (1965)	A rough rock showing several intense, dark blue benitoite crystals emerging from white natrolite matrix. Benitoite (1985)

Colorado	Intense, transparent, strawberry red crystals of rhodochrosite from Colorado's Sweet Home mine. Rhodochrosite (2002)	Large blocks of partially worked white marble lie on the ground at Colorado's Marble Mill site with the National Historical marker in the background.	A light blue piece of aquamarine cutting rough. Aquamarine (1971)

Connecticut	A cluster of orange to red almandine garnet crystals. Almandine Garnet (1977)	A 1911 postcard showing a quarrying operation in Portland Connecticut with cliffs of brownstone in the background, rail lines for loading and transporting stone, industrial buildings, rail carts, and other parts of the operation.

Delaware	A long crystal of light purple sillimanite on a white background. Sillimanite

Florida	A nodule of gray fossilized coral which has been sliced in half with the halves lying opposite each other and showing the hollow center.	A chunk of grayish yellow moonstone which shows fracture lines and a blue glow in some portions. Moonstone (1970)

Georgia	Intersecting twinned crystals of brown staurolite forming an abstract sculptural mass. Staurolite (1976)	An oval cabochon of pink quartz Quartz (1976)

Hawaiʻi	Black branches of coral, along which are arranged bright yellow polyps. Black coral

Idaho	A round cabochon of very dark red garnet which displays a six pointed star effect under intense lighting. Star garnet (1967)

Illinois	A cluster of purple fluorite crystals with a few crystals of iron pyrite attached. Fluorite (1965)

Indiana	A chunk of limestone showing yellowish and white banding. Salem Limestone (1971)

Iowa	Half of a sliced geode nodule showing the hollow center lined with white and grayish druzy crystals. quartz Geode (1967)

Kansas

Kentucky	A chunk of black coal. Coal (1998)	A smooth pebble of white agate with black and green dendrite formations. Kentucky Agate (2000)	A string of white pearls arranged in a twisted pile on a white background. Freshwater pearl (1986)

Louisiana	A chunk of agate in grayish and golden colors with the split face showing internal fortification banding along with a black dendritic formation.	Louisiana state gemstone Lapearlite (Eastern oyster shell) (2011)

Maine	Dark bluish and green or black, rod-like tourmaline crystals emerging from clear quartz holding matrix. Tourmaline

Maryland	Peach reds and yellows with threadlike mossy and cell-like formations in semi-smooth tumbled agate pebbles. Patuxent River Stone agate (2004)

Massachusetts	Shiny black crystals of babingtonite on whitish matrix. Babingtonite (1971)	Photo of a gray cliffside in Roxbury showing the conglomerate material. Roxbury Puddingstone (1983)	A rough chunk of rhodonite showing white and intense pink crystals. Rhodonite (1979)

Michigan	A polished brown pebble of petoskey stone showing the typically six-sided cellular structure from the fossilized coral. Petoskey stone fossilized coral (1965)	A polished cabochon of green pumpellyite showing the desirable chatoyant, cell-like structure found in the Michigan material. Chlorastrolite (aka Isle Royale greenstone 1972)

Minnesota	An oval cabochon of Lake Superior agate which displays the typical tight fortification banding in shades of reds, yellows and white.

Mississippi	A sliced section of a petrified wood log showing exterior fossilized bark and black, white, red and yellow agate in the interior.

Missouri	Gray crystals of galena clustered on a gray matrix. Galena (1967) Missouri's nickname is the Lead State	A slice of mozarkite with the face showing a swirling pattern of cream, pinks and yellows. Mozarkite (1967)

Montana	A custom shield cut sapphire from Rock Creek, Montana in deep blue with a slight green undertone or zoning. Montana Sapphire and A cloudy translucent white polished shield-shaped cabochon of Montana moss agate with puffy black dendrites arranged around a central area of golden fortifications.

Nebraska	Tumble polished translucent agate pebbles showing gold, red and white colors. Prairie agate (1967)	A chunk of seam agate with the split face showing fortification banding in gray, blue and white colors. Blue agate (1967)

Nevada	An irregularly shaped specimen of native silver ore. Silver Nevada's nickname is the Silver State	A rough chunk of sandstone with the face showing layering in shades of brown, black and white. Sandstone (1987)	A freeform cabochon of black Virgin Valley wood replacement opal with red, blue and green fire showing against the dark base opal.

New Hampshire	A yellowish white beryl crystal. Beryl (1985)	The Old Man of the Mountain granite formation in New Hampshire's White Mountains. Granite (1985) New Hampshire's nickname is the Granite State	A cluster of transparent and light brown quartz crystals. Smoky quartz (1985)

New Jersey

New Mexico	A polished, freeform cabochon of turquoise blue with brown dots of matrix inclusions. Turquoise (1967)

New York	A round, faceted garnet gemstone in deep red with orange undertones. Garnet (1967)

North Carolina	An irregularly shaped nugget of native gold. Gold (2011)	The polished face of a granite slab showing an even pattern of white, greenish and black crystals. Granite (1979)	Translucent green emerald crystals in a cream-colored matrix. Emerald (1973)

North Dakota

Ohio	A freeform cabochon of Ohio flint with a pattern of cream and ochre bands and a bluish black pattern at one end.

Oklahoma	A rough, oval desert rose formation made up of barite crystals. Rose Rock (Barite)

Oregon	A sliced thunderegg with the polished face showing a water level pattern in clear, blue and white chalcedony bands. Thunderegg agate (1965)	Four faceted gemstones in various cuts showing some of the Oregon labradorite colors, including dichroic red green, red and yellow bicolor, clear with copper shiller streaking, and teal blue-green.

Pennsylvania

Rhode Island	The face of a polished slab of bowenite serpentine with a wavy pattern in colors ranging from intense jade green to yellows.	Two rough chunks of cumberlandite showing reddish brown coloring with a few whitish streaks. Cumberlandite (1966)

South Carolina	A closeup of the polished face of a slab of granite showing grains of white, bluish gray and black. Blue granite (1969)	A cluster of light purple to violet amethyst crystals. Amethyst (1969)

South Dakota	Rose Quartz Rose quartz	A group of tumble polished agates showing banding in red, orange and white with crystal interiors. Fairburn agate (1966)and State Jewelry: Black Hills Gold

Tennessee	A round cabochon of Tennessee paint rock showing clear holding agate, white banding and a red mossy formation. Agate (2009)	Closup view of an unpolished, gray limestone slab showing fossil shell and other inclusions. Limestone (from 1979 to present) and formerly A round cabochon of Tennessee paint rock showing clear holding agate, white banding and a red mossy formation.	A string of white pearls arranged in a twisted pile on a white background. Tennessee River Pearl (1979)

Texas	An irregularly shaped specimen of native silver ore. Precious Metal: Silver (2007)	An oval palmwood cabochon in a buff color with dark dots formed when sclerenchyma structures in the wood was replaced by chalcedony.	A light blue chunk of topaz cutting rough. Gemstone: Texas blue topaz (1969) A line drawing showing the five-pointed star feature in the pavilion of the Lone Star gemstone cut.

Utah	An irregular piece of native copper on a green background. Copper (1994)	A chunk of black coal. Coal (1991)	A terminated raw, golden topaz crystal. Topaz (1969)

Vermont	A chunk of translucent white talc. Talc	A buff-colored boulder of granite. Granite (1992) and The white marble state capitol building in Montpelier.	A cluster of orange garnet crystals in a light gray matrix. Grossular garnet

Virginia	A speckled rock specimen Nelsonite (2016)

Washington	A sliced section of a petrified wood log showing exterior fossilized bark and black, white, red and yellow agate in the interior.

West Virginia	A chunk of black coal. Bituminous Coal (2009)	A polished slab showing the cellular structure from the fossilized coral. Mississippian Lithostrotionella fossil coral (1990)

Wisconsin	Gray crystal of galena. Galena (1971) -->	A rough chunk of granite showing grains of red, pink, white, gray and black. Red granite (1971)

Wyoming	A freeform triangular cabochon of olive-green Wyoming nephrite jade. Wyoming nephrite jade (1967)

Sentence(s)

Washington state's gem is petrified wood.

final_sentence: Washington state's gem is petrified wood.