Contra Costa Mineral & Gem Society
Clayton, California, United States
Contra Costa Mineral & Gem Society is a rockhounding club based in Clayton, California. A member of the CFMS.
- Federation
- CFMS
- Specialty Focus
- Minerals/Gems
Field tripsOpen to beginners
More clubs in California
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- Searchers Gem and Mineral Society — Anaheim
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- Antioch Lapidary Club — Antioch
- Kern County Mineral Society — Bakersfield
- See all clubs in California →
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