Due to the Covid-19 pandemic, we do not know when California gem and minerals shows will resume. We will update our schedule when we have information on future shows.
Follow us on Instagram at #wonderworks_minerals for additional updates.
Be well and stay safe!
Richard and Cheryl.


Hello and thanks for visiting our web site! Our names are Richard & Cheryl Sittinger, and we have been displaying amazing minerals, tumbled stones, gemstones, and beads at gem & mineral shows since 1995! Our shows are primarily in California where we live, plus the two biggest shows of the year, in Tucson every January/February, and in Denver every September.
Please come and visit us at the show nearest to you and see our amazing selection of treasures from the earth, or contact us if there is something specific you are looking for.
Show Calendar
ARIZONA GEM & MINERAL SHOW-INN SUITES
Dates
January 30 to February 12 2020
Days/Times
10 am-6 pm daily
10 am-5 pm. Sat. 2/16
Location
Hotel Tucson City Center
475. N, Granada, Tucson, AZ
We’re in the Silver Ballroom – Map & Directions
Come check out our selection of:
Ajoite and Papagoite from South Africa
Sugilite from South Africa
100 Varieties of High Quality Tumbled Stones
(email us at Richard@Wonderworksminerals.com for list)
Tibetan Quartz Beads
Jet Beads and Tumbled Jet
Faceted Sweet Home & Chinese Rhodochrosite and Much more!
Open to the Public | Free Admission | Free Parking
Free shuttles between shows and to satellite parking lots
Castro Valley Jewelry, Gem & Mineral Show
Dates
March 6-8 2020
Days/Times
Friday & Saturday 10 AM to 6 PM
Location
Newark Pavilion-Front Building
6430 Thornton Ave
Newark, CA
Click here for more information: http://www.mgscv.org/show.html
Turlock Gem Show
Show Cancelled
2020 Show cancelled due to Governor’s banning of events with over 250 attendees thru March 31, 2020
Dates
March 14th & 15th 2020
Days/Times
Saturday & Sunday 10 AM – 5 PM
Location
Stanislaus Fairgrounds
900 North Broadway
Turlock, California
Admission $6–Children under 12 free with paid adult
Click here for more information: http://www.turlockgemshow.com/
San Jose Gem & Mineral Festival
Show Cancelled
2020 Show cancelled due to Governor’s banning of events with over 250 attendees thru March 31, 2020
Dates
March 21 & 22 2020
Days/Times
Saturday & Sunday 10 AM – 5 PM
Location
Santa Clara County Fairgrounds
344 Tully Road
San Jose, CA
$6.00 for adults, Children under 12 free. Scouts in uniform are free with an adult. Free admission to active duty, retired military, their dependents with military ID and former military with VA ID card.
Paso Robles Rock & Gem Show
Show Cancelled
2020 Show cancelled due to Governor’s banning of events with over 250 attendees thru March 31, 2020
Dates
April 18 – 19 2020
Days/Times
Saturday 10 AM – 5 PM
Sunday 10 AM – 4 PM
Location
Paso Robles Event Center
2198 Riverside Drive
Paso Robles,CA 93446
Come check out our enormous booth with lots of space for our amazing minerals, crystals, tumbled stones, gemstone pendants, bracelets, and beads, Moldavite, and our large clearance area!
Santa Cruz Mineral & Gem Show
Show Cancelled
2020 Show cancelled due to Governor’s banning of events with over 250 attendees thru March 31, 2020
Dates
April 25 & 26 2020
Days/Times
Saturday & Sunday 10 AM – 5 PM
Location
Santa Cruz Civic Auditorium
Santa Cruz, CA
One of favorite Gem shows every year!
West Coast Gem & Mineral Show–Spring
Show Cancelled
2020 Show cancelled due to Governor’s banning of events with over 250 attendees.
Dates
May 8-10 2020
Days/Times
Friday – Saturday 10 AM – 6 PM
LOCATION – NEW!!!
Hilton Orange County/Costa Mesa
3050 Bristol St.
Costa Mesa, CA 92626
This new location is minutes away from the old location. The promoter says there is lots and lots of parking! Admission is still free and parking is $10/day.
We’re loving the new location because we have a large booth in the main hallway adjacent to the wholesale ballroom entrance. Lot and lots of space to display our amazing selection of colorful minerals, high quality tumbled stones (100 plus varieties including hard-to-find stones,) gemstone bracelets, beads, and necklaces, Ajoite and Papagoite, Moldavite rough pieces and sterling silver pendants, faceted Sphalerite gemstones, Specularite, and much more!And of course more space in the back of the booth for our 50% clearance area.
CAMBRIA GEM & MINERAL SHOW SPRING
Annual Spring Gem & Mineral Show
Date
June 6 & 7, 2020
Days/Time
Saturday 10 AM – 6 PM
Sunday 10 AM – 5 PM
Location
1000 Main Street (Cambria Vet’s Hall)
A gem show less than 1 mile from our home? Who would have thought! And another large booth with plenty of room for our amazing minerals. Come and see us on the stage in our spacious booth with 50% clearance tables in the center!
Culver City
Date
June 27 & 28 2020
Days/Times
Saturday 10 am to 6 pm
Sunday 10 am to 5 pm
Location
Veterans Memorial Complex
4117 Overland Ave Culver City, CA 90231
Free admission – The best Gem & Mineral Club-sponsored show in California!
Autumn Cambria Show
TBA
Location:
Cambria Vet’s Hall
1000 Main Street
Cambria, CA 93428
Free Parking, Admission, & Door Prizes Featuring vendors selling a fantastic array of gems, minerals, fossils, jewelry, jade, beads, crystals, meteorites, lapidary-related items & display supplies.
Fall West Coast Gem & Mineral Show
Dates TBA
Wonderful New Location for the West Coast Gem & Mineral Show!
The show has moved to:
The Hilton Orange County / Costa Mesa
3050 Bristol St.
Costa Mesa, CA 92626
This new location is minutes away from the old location. The promoter says there is lots and lots of parking! Admission is still free and parking is $10/day.
We’re loving the new location because we have a large booth in the main hallway adjacent to the wholesale ballroom entrance. Lot and lots of space to display our amazing selection of colorful minerals, high quality tumbled stones (100 plus varieties including hard-to-find stones,) gemstone bracelets, beads, and necklaces, Ajoite and Papagoite, Moldavite rough pieces and sterling silver pendants, faceted Sphalerite gemstones, Specularite, and much more!And of course more space in the back of the booth for our 50% clearance area.
San Francisco
Dates
TBA
Days
TBA
Location
San Francisco County Fair Building
9th Avenue & Lincoln Way
Denver Colorado
Date
TBA
Days/Times
TBA
Location
TBA
Monterey California
Date
TBA
Days/Times
TBA
Location
TBA
Big Sur Jade Festival
RETIRED!
We have retired from the Jade Festival after more than twenty years.