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Mineral & Gem Society of Castro Valley

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Mineral Gem Society of Castro Valley
  • Home
  • Catalog
  • Collections
  • Annual Show
  • Blog
  • Learn More About Our Club
    • Petrographs
    • Calendar
    • Join Our Club
    • Contact Us
    • About Us
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Collections

  • Agate Collection

    Agate Collection

  • Amethyst Collection

    Amethyst Collection

  • Geode Collection

    Geode Collection

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    Rare Finds

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Workshop Location

Mineral and Gem Society of Castro Valley

20948 A Corsair Blvd

Hayward, CA 94545

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