Organizer profile

Contra Costa Mineral & Gem Society

The Contra Costa Mineral & Gem Society is a nonprofit club that has run its annual Mineral & Gem Show for about three-quarters of a century.

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The Contra Costa Mineral & Gem Society is a nonprofit club that has run its annual Mineral & Gem Show for about three-quarters of a century. The 2026 show is November 14-15 at Centre Concord in Concord, California, with minerals, gems, fossils, meteorites, jewelry and slabs from vendors, plus lapidary demonstrations, a fluorescent tent, kids' rock painting, and raffles. Admission is $9 for seniors and $10 for ages 13 and over, with children 12 and under free.

Gem, Mineral, Rock & Jewelry Shows

Serves California

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Website: ccmgsclub.com
Email: contact@ccmgsclub.com

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CCMGS Annual Mineral & Gem Show

Centre Concord · Concord, CA

Sat, Nov 14 – Sun, Nov 15

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