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California, USA

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Gemstone List

Gem list contains entries from all listed localities in region.

Gemstones from California, USA by Colour

Click on a photo for more information.

Localities in this Region

USA

California
- El Dorado County
  - Fallen Leaf
    - Unnamed Adularia occurrence [1]
- Imperial County
  - Boulder Park
    - Unnamed Gemstone prospect [1]
- Kern County
  - Boron
- Lake County
  - East Mayacmas Mining District
    - Howard Springs
      - Unnamed Gemstone occurrence [1]
- Madera County
- Mono County
  - White Mountains
    - White Mountain Peak
      - Champion Mine
- Riverside County
  - Jurupa Valley
    - Crestmore
      - Crestmore quarries
- San Benito County
  - Picacho Peak
    - Mina Numero Uno
  - Santa Rita Peak
    - California State Gem Mine
- San Bernardino County
  - Silver Lake Mining District
    - Soda Mountains
      - Baker
- San Diego County
  - Mesa Grande Mining District
    - Gem Hill
      - Himalaya Mine
      - Mesa Grande Mine
  - Ramona Mining District
    - Ramona
      - Little Three Mine
  - Warner Springs Mining District
    - Chihuahua Valley
      - Carmelita Mine (Big Spring mine; Blue Gem claim; Crest Gem mine; Elinor deposit; Elinor mine; Estudillo mine; French Pete mine; MS 6130; Peter Cabat mine)
    - Warner Springs
      - Cryo-Genie Mine (Cryogenie Mine; Cindy B-Cryogenie claim; Lost Valley Truck Trail prospect)
- San Luis Obispo County
  - San Luis Obispo
    - Unnamed Spinel occurrence [1]
- Santa Clara County
  - bounded by the Santa Cruz Mountains to the west and the Diablo Range to the east
    - Paradise Valley
      - Unspecified Gemstone occurrences [4]
- Siskiyou County
  - Bogus Mountain
    - Bogus Mountain gemstone occurrence
  - Klamath Mountains
    - Cinnabar Camp
      - Unnamed Gemstone occurrence [1]
    - Preston Peak
      - Unnamed gemstone occurrence [6]
- Tulare County
  - Ivanhoe
    - Venice Hills
      - Unnamed Semi-precious Gemstone occurrence [1]

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