This event is in the past.It took place on March 22, 2026 at Santa Clara County Fairgrounds.
Market
MarketRocks that glow in the dark and live arrowhead crafting demos make this gem and mineral show feel like a hands-on science museum you can shop. Dig through fossils, watch flint knapping, and add a fluorescent specimen to your collection.
Family-friendly
Hands-on learning
Rock & fossil shopping
Weekend activity
Tips
đźš—free parking in Lot C on Old Tully Rd
👨‍👩‍👧‍👦great for curious kids and budding collectors
đź’Žbring cash for specimens from vendors
Santa Clara Valley Gem and Mineral Show
South San Jose
MarketMarketRocks that glow in the dark and live arrowhead crafting demos make this gem and mineral show feel like a hands-on science museum you can shop. Dig through fossils, watch flint knapping, and add a fluorescent specimen to your collection.
Family-friendly
Hands-on learning
Rock & fossil shopping
Weekend activity
Tips
đźš—free parking in Lot C on Old Tully Rd
👨‍👩‍👧‍👦great for curious kids and budding collectors
đź’Žbring cash for specimens from vendors
Make it an outing
Add nearby spots before or after your event