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Gemstone List

Gem list contains entries from all listed localities in region.

var: Chiastolite

var: Aquamarine

var: Alexandrite

var: Oligoclase

var: Spessartine

var: Sheen Obsidian

var: Lapis lazuli

var: Black Opal

var: Crystal Opal

var: Honey Opal

var: Precious Opal

var: Water Opal

Phosphosiderite

var: Chlorastrolite

var: Binghamite

var: Bloodstone

var: Chalcedony

var: Chrysocolla Chalcedony

var: Chrysoprase

var: Moss Agate

var: Orbicular Jasper

var: Petrified Wood

var: Smoky Quartz

var: Antigorite

var: Williamsite

Stibiotantalite

var: Indicolite

var: Watermelon Tourmaline

var: Hexagonite

var: Californite

Gemstones from USA by Colour

Click on a photo for more information.

Localities in this Region

USA

Alaska
- Valdez-Cordova Census Area
  - Nizina Mining District
    - Kennecott
- Wrangel City and Bourough
  - Petersburg Mining District
    - Alaska Garnet; Wrangell Garnet Mine
Arizona
- Cochise County
  - Bisbee
    - Campbell Mine (Campbell shaft)
    - Shattuck Mine (Shattuck-Denn Mine; Shattuck-Arizona Mine; Denn Mine)
  - Turquoise Mining District (Courtland-Gleeson Mining District)
    - Turquoise Mountain
- La Paz County
  - Silver Mining District
    - Red Cloud Mine
- Maricopa Co.
  - Four Peaks
    - Four Peaks Amethyst Mine (Arizona Amethyst Mine)
- Navajo Co.
  - Holbrook Mining District
    - Holbrook
  - Petrified Forest Mining District
    - Petrified Forest
Arkansas
- Garland Co.
  - Hot Springs
    - Hot Springs Water Works
- Pike Co.
  - Murfreesboro
California
- El Dorado Co.
  - Fallen Leaf
    - Unnamed Adularia occurrence [1]
- Kern Co.
  - Boron
- Madera Co.
- Riverside Co.
  - Crestmore
    - Crestmore quarries
- San Luis Obispo Co.
  - San Luis Obispo
    - Unnamed Spinel occurrence [1]
- Siskiyou Co.
  - Bogus Mountain
    - Bogus Mountain gemstone occurrence
Colorado
- Chaffee Co.
  - Mt Antero
- Gunnison Co.
  - Box Canyon Mining District
    - Unknown Gemstone Occurrence (MRDS - 10016409)
- Larimer Co.
  - State Line Kimberlite Mining District
    - Kelsey Lake
- Park Co.
  - Topaz Mountain Gem Mine (Matucat Road deposits)
- Saguache Co.
  - Bonanza Mining District (Kerber Creek Mining District; Blake Mining District)
    - Villa Grove Turquoise Mine (Hall Turquoise Mine; Villa Grove Mine; Turquoise Lode and Turquoise Blue Lode claims)
- Teller Co.
  - Cripple Creek Mining District
- Weld Co.
  - Stoneham
    - Sterling Mine
Connecticut
- Fairfield County
  - Danbury
    - Danburite type locality
- Middlesex Co.
  - East Hampton (Chatham)
    - Slocum prospect
- Tolland Co.
  - Union
    - Cordierite locality (Bigelow Pond)
Georgia
- Rabun Co.
  - Pine Mountain
    - Laurel Creek Mine
- Wilkes Co.
  - Jacksons Crossroads
    - Jackson Crossroads Amethyst Mine (JXR Amethyst Mine)
Idaho
- Benewah Co.
  - Camas Cove Mining District
    - Emerald Creek Placer
- Clark Co.
  - Spencer
    - Spencer Opal Mine
- Coeur d'Alene Mining District
Illinois
- Hardin Co.
  - Cave-in-Rock
  - Rosiclare
Louisiana
- Vernon Parish
  - Hidden Fire Opal Mine (Louisiana Opal Exchange Mine)
Maine
- Oxford County
  - Buckfield
    - Bennett Quarry
  - Newry
    - Crooker Gem Pegmatite Quarries
    - Dunton Gem Quarry
  - Paris
    - Mount Mica Quarry (Mount Mica Mine)
  - Stoneham
    - Beryllonite Locality (Mcallister Occurrence)
- Sagadahoc Co.
  - Topsham
Massachusetts
- Hampden Co.
  - Westfield
    - Lane & Son traprock quarries (Lane's Quarry)
- Hampshire Co.
  - Amherst
    - Notch Quarry (Lane Quarry; Amherst Quarry; Round Mountain Quarry)
Michigan
- Charlevoix Co.
  - Charlevoix
    - Medusa Cement
- Cheboygan Co.
- Crawford Co.
  - Frederic
    - Unnamed gravel pit
- Emmet Co.
  - Petoskey
- Houghton Co.
  - Calumet Township
    - Calumet
  - Houghton
    - Isle Royale Mines
- Keweenaw Co.
  - Lake Superior
    - Isle Royale National Park
  - Mohawk
    - Mohawk Mine
- Keweenaw Peninsula
- Oceana Co.
- Presque Isle Co.
Minnesota
- Crow Wing Co.
  - Cuyuna North Range
Mississippi
- Claiborne Co.
Montana
- Butte-Silver Bow (Butte; Silver Bow Co.)
  - Butte Mining District (Summit Valley Mining District)
- Deer Lodge Co.
- Granite Co.
  - Rock Creek Mining District
    - Rock Creek Sapphire (American Sapphire Gem Mine; Gem Mountain Mine; Anaconda-Sapphire Gulches; Chaussee Sapphire Corp. Mine; American Gem Corp.)
- Judith Basin Co.
- Lewis and Clark Co.
  - Helena Mining District (Spring Hill Mining District)
    - Missouri River placers
  - Spokane Bar (American Gem Corp.; Spokane Bar Sapphire Mine)
Nevada
- Esmeralda Co.
  - Lone Mountain Mining District
- Humboldt Co.
  - Virgin Valley
- Lander Co.
  - Bullion Mining District
    - Lander Blue mine
    - Old Tenabo placer
  - Cortez Mining District
    - Fox Mine (Cortez Turquoise mine)
New Hampshire
- Cheshire Co.
  - Alstead
    - Big Mine (Davis Mine; Gilsum & Bowers Mine; Golding-Keene Mine; Rhoda Mine; Tripp No. 2 Mine; Victory Mine)
- Grafton Co.
  - Groton
    - Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine)
    - Palermo No. 2 mine
- Sullivan Co.
  - Newport
    - Chandlers Mill Quarry
New Jersey
- Somerset Co.
  - Bridgewater Township
    - Chimney Rock Quarry (Houdaille Industries Quarry; The Bound Brook Quarry; Stavola Industries Quarry)
- Sussex County
  - Franklin Mining District
    - Franklin

USA

New Mexico
- Rio Arriba Co.
  - Petaca District
    - La Madera Mtn.
- Sierra Co.
  - Paramount Canyon
    - Beryllium Virgin claim
  - Round Mountain
New York
- St. Lawrence Co.
  - De Kalb Township
    - De Kalb
  - Fowler
North Carolina
- Alexander Co.
  - Ellis Mine
  - Hiddenite
    - Emerald Valley Mine
    - Rist Mine (North America Emerald Mine; American Gems Mine; LKA International Emerald Mine)
- Clay Co.
  - Buck Creek
- Cleveland Co.
  - Shelby
    - Plantation Emerald Mine (Old Plantation Mine; Turner Mine; Tarper Mine)
- Mitchell Co.
  - Spruce Pine Mining District
    - Little Switzerland
Oregon
- Harney Co.
  - Ponderosa Sunstones Mine (Pinkie Nos. 1-4 Claims)
- Lake Co.
  - Juniper Ridge Opal Mine
  - Plush
    - Dust Devil Mine
- Morrow Co.
  - Opal Butte
Texas
- Chambers Co.
  - Mont Belvieu
    - Barbers Hill Salt Dome (Barbers Hill)
Utah
- Box Elder Co.
- Iron Co.
  - Unknown Gemstone Occurrence (MRDS - 10090815)
- Juab Co.
  - Thomas Range
- Tooele Co.
  - Spring Creek
    - Unknown Gemstone (MRDS - 10020427)
Virginia
- Amelia Co.
  - Amelia (Amelia Court House)
    - Rutherford No. 3 pegmatite (Rutherford No. 2 pegmatite; Rutherford Mines; Rutherford No. 1 pegmatite)
Washington
- Okanogan Co.
  - Golden Horn Batholith
    - Washington Pass
Wyoming
- Fremont Co.
  - Granite Mountains

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