Since 1962. This is Northern California’s largest Gem and Mineral Show!!! A fun educational family event!! Educational Activities for Kids and Scouts. Something intriguing for everyone! Free Parking!! – Newly expanded this year, over 45 vendors – 4 buildings, plus outside activities, featuring: Crystals, Beads, Gemstones, Gold Panning - take home real gold! Meteorites, Fossils, and for Kids “Education Station" expanded by popular demand, an Interactive Educational area for kids, and Scouts! And more; Polished Stones, Jade, Opal, World Class Mineral Specimens, Tourmaline, Gold, Petrified Wood. Everything you need to assemble your own jewelry too! Watch Demonstrations in the Arts and Bid on Silent Auctions. Kids - 12 and under Free. Grab a discount coupon from our website. Experience Metal Detecting on the grass! Free Gem, Mineral and Rock Identification!!