Centre Concord
Saturday, November 2
Annual Mineral & Gem Show by the Contra Costa Mineral & Gem Society
Join us for the Contra Costa Mineral & Gem Society’s Annual Mineral & Gem Show November 2-3, 2024! Come enjoy a rockin’ weekend full of affordable family fun, holiday shopping, and educational experiences for all ages! Vendors, Minerals, Gems, Fossils, Meteorites, Jewelry, Beads, Slabs, Displays, ...
