We were founded in 1954 by Rock-Hounds interested in sharing their interests and knowledge of rocks, minerals and Geology. Come join us!
Learn to cut and shape gem stones, join rockhounding field trips, learn from incredible experts, and more!
06/12/2026
Handmade gemstone jewelry raffle prizes! Made by members for the VGMS Open House during the Solano County Fair . Event is on now, June 11-14.
Entry is included with general admission- see https://scfair.org/ for more details.
06/12/2026
Rockhound for gemstones at the VGMS Open House during the Solano County Fair! Open Now, Friday- Sunday, entry is included with general admission to the fair.
Want to learn how to make them into jewelry, or just love rocks? Join our club, we'll teach you!
Raffle Prizes! Handmade gemstone jewelry donated for the raffle at Vallejo Gem and Mineral Society's annual Open House, part of the Solano County Fairgrounds 77th Annual Fair!
Come join in the fun June 11-14. Entry is included with general admission to the fair- see https://scfair.org/ for more details.
Select a geod and we can cut it open, shop handcrafted gemstone jewelry, mystery bags, and slab and Mineral sales, or enjoy our raffle with incredible artisan donations from members and the kids corner where kiddos can dig for treasures! There is something for everyone. Come pay us a visit!
06/07/2026
Come join in the fun! The Vallejo Gem and Mineral society will be hosting our longstanding open house as part of Solano County's 77th Annual Fair June 11-14. Entry is included with general admission- see https://scfair.org/ for more details.
Shop handcrafted gemstone jewelry, mystery bags, and slab and Mineral sales, or enjoy our raffle with incredible artisan donations from members and the kids corner where kiddos can dig for treasures! There is something for everyone. Come pay us a visit!
Photos from last year's event
05/09/2026
Congratulations to our most recent members to complete their cabochon training! Can't wait to see what they make next.
03/02/2026
It's a wrap! Thank you to all of our vendors and volunteers who made this event magical! We had a great turn out and look forward to seeing you next year.
Stunning handmade peices for sale at the VGMS 60th annual Gem Mineral and Jewelry Show. Highlighting another amazing vendor, . Come see it live! Today is the last day.
Solano County Fairgrounds
McCormack Hall
10-5pm Feb 28- March 1
Free Parking
Tickets $6 Adult, Kids free!
Last day for our 60th annual Gem, Mineral and Jewelry show in Vallejo! Jewelery lovers, rockhounds, science fans of all ages have loved this for generations. Come discover why! Bring a friend or your whole family. March 1, 10-5pm at the Solano County Fairgrounds.
Lots of free parking, tickets just $6 (children under 12 are free, no online sales, cash, tap or card accepted at the door).
Hourly raffle, silent auction, and more!!
Event link: https://facebook.com/events/s/60th-annual-gem-mineral-jewelr/3227142184292175/
Last day for our 60th annual Gem, Mineral and Jewelry show in Vallejo! Jewelery lovers, rockhounds, science fans of all ages have loved this for generations. Come discover why! Bring a friend or your whole family. Feb 28-March 1, 10-5pm at the Solano County Fairgrounds.
Lots of free parking, tickets just $6 (children under 12 are free, no online sales, cash, tap or card accepted at the door).
Hourly raffle, silent auction, and more!!
Event link: https://facebook.com/events/s/60th-annual-gem-mineral-jewelr/3227142184292175/
Last day to see these incredible bolder opals at our 60th annual Gem, Mineral and Jewelry show in Vallejo! Jewelery lovers, rockhounds, science fans of all ages have loved this for generations. Come discover why! Bring a friend or your whole family. March 1, 10-5pm at the Solano County Fairgrounds.
Lots of free parking, tickets just $6 (children under 12 are free, no online sales, cash, tap or card accepted at the door).
Hourly raffle, silent auction, and more!!
Event link: https://facebook.com/events/s/60th-annual-gem-mineral-jewelr/3227142184292175/
| Tuesday | 10am - 1pm |
| 4pm - 6:45pm | |
| Thursday | 4pm - 6:45pm |
| Saturday | 10am - 1pm |