Mineral & Gem Society of Castro Valley Annual Jewelry, Gem & Mineral Show & Sale

Family Educational Event. 40+ dealers, local and across the country, with minerals, rocks, gemstones, fossils, rough & cut stones, crystals, opals, faceted stones, beads, jewelry, lapidary supplies, jewelry making supplies. 40+ lapidary, mineral, fossil, fluorescent, & jewelry displays. Local Ice Age Fossils presented by Math Science Nucleus of Fremont. Large display of Fluorescent Minerals, and dealers. Live Auction. Door prizes. Demonstrations by MGSCV members and guests, membership info. Spinning Wheel. Geode Cracking. School tours, Friday morning.