American Gemstones and Rocks: Chart by State

I finally compiled the promised list of gemstones by state!  It took a lot of research as there were several reference websites, none had complete list, and only a few said “official” for states.  There was also some confusion about the difference in gemstone (typically used in jewelry), rock (common collectable for state that may or may not be in jewelry), and about a state’s main mineral (gems are minerals and rocks are composed of minerals).  The chart below is not every stone produced in the state, just the ones selected to represent the state. To find the stones frequently mined in a state, click on the state in first column of chart below. If you live in, or go mining during travel to a particular state and see that I missed something or your state has made a change, please let me know in the comments under the post.

If you want to look at pictures, most gemstones in list below are on the USA state symbols site.  Some of the best photos I saw for USA rocks and minerals was on Wikipedia, where you may also find additional details about each. Links within the chart will go to blog posts where I have written about the particular stone.

American Gemstones and Rocks per State

STATE (Abbreviation)

GEMSTONE

METAL/MINERAL

ROCK

Alabama (AL)

Star Blue Quartz

Hematite (Red Iron Ore)

Marble

Alaska (AK)

Nephrite Jade

Gold

 

Arizona (AZ)

Turquoise

Copper or Wulfenite (Yellow Lead Ore)

 

Arkansas(AR)

Diamond

Crystal Quartz

Bauxite 

California (CA)

Benitoite

Gold

Serpentine 

Colorado (CO)

Aquamarine

Rhodochrosite

Yule Marble 

Connecticut (CT)

Garnet

Almandine Garnet

 

Delaware (DE)

 

Sillimanite

 

Florida (FL)

Moonstone

Agatized Coral

 

Georgia (GA)

Quartz

Staurolite

 

Hawaii (HI)

Black Coral

 

 

Idaho (ID)

Star Garnet

 

 

Illinois (IL)

 

Fluorite

 

Indiana (IN)

 

 

Salem Limestone

Iowa (IA)

 

Petrified Palmwood

Geode

Kansas (KS)

Jelenite Amber

Galena

Greenhorn Limestone

Kentucky (KY)

Freshwater Pearl

Coal

Kentucky Agate

Louisiana (LA)

Lapearlite (Oyster Shell)

Agate

 

Maine (ME)

Tourmaline

 

 

Maryland (MD)

Patuxent River Stone

 

 

Massachusetts (MA)

Rhodonite

Babingtonite

Roxbury Puddingstone 

Michigan (MI)

Chlorastrolite (Isle Royale Greenstone)

 

Petoskey Stone (Fossilized Coral)

Minnesota (MN)

Lake Superior Agate

 

 

Mississippi (MS)

 

 

Petrified Wood

Missouri (MO)

 

Galena

Mozarkite

Montana (MT)

Sapphire

 

Montana Agate

Nebraska (NE)

Blue Chalcedony

 

Prairie Agate

Nevada (NV)

Virgin Valley Black Fire Opal or Nevada Turquoise

Silver

Sandstone

New Hampshire (NH)

Smoky Quartz

Beryl

Granite

New Jersey (NJ)

 

 

 

New Mexico (NM)

Turquoise

 

 

New York (NY)

Garnet

Herkimer “Diamond” Quartz

 

North Carolina (NC)

Emerald

Gold or Garnet

Granite

North Dakota (ND)

 

Petrified Wood

 

Ohio (OH)

Ohio Flint

Trilobite Fossil

 

Oklahoma (OK)

Selenite Crystal

 

Rose Rock (Barite)

Oregon (OR)

Oregon Sunstone

Oregonite or Josephinite

Thunderegg (Agate)

Pennsylvania (PA)

 

Trilobite Fossil

 

Rhode Island (RI)

Bowenite

 

Cumberlandite

South Carolina (SC)

Amethyst

 

Blue Granite

South Dakota (SD)

Fairburn Agate

Rose Quartz

 

Tennessee (TN)

Tennessee River Pearl

Agate

Limestone

Texas (TX)

Texas Blue Topaz

Silver

Oligocene (Petrified Palmwood)

Utah (UT)

Topaz

Copper

Coal

Vermont (VT)

Grossular Garnet

Talc

Granite or Marble or Slate

Virginia (VA)

 

 

Nelsonite

Washington (WA)

Petrified Wood

 

 

West Virginia (WV)

Lithostrotionella  (Fossil Coral/Chalcedony)

Bituminous Coal

 

Wisconsin (WI)

 

Galena

Red Granite

Wyoming (WY)

Nephrite Jade