Welcome to FGMS

Fallbrook Gem and Mineral Society is a nonprofit organization located in sunny Fallbrook, CA.

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Welcome to Fallbrook Gem & Mineral Society

Our Free Museum and Gift Shop are Open Fridays 11 am - 3 pm & Saturdays 10 am - 4 pm, and by prior appointment.
 Our membership meetings are held at the Fallbrook Gem & Mineral Society meeting room (123 W. Alvarado Street, Fallbrook) at 6:30 pm on the 2nd Thursday of the month September- June, except for the 3rd Thursday in February.

FGMS was founded in 1957. We are a group of individuals who share common interests in gems, minerals, jewelry, geology, paleontology and the related earth sciences and lapidary arts. The Society is based in Fallbrook, San Diego County, California -- just a "stone's throw" from some of the most productive gem mining areas in the United States. Whether you're interested in local geology or gemology, you are welcome to join our members for guest lectures, workshops, lapidary classes, field trips, gem and mineral shows - Rough N' Cut in March and Fall Festival of Gems & Minerals in October - and more.


Come and see what we've been hiding in Fallbrook!



May 14, 2026 

Membership general meeting 6:30 pm

Meeting for Fair volunteers is on June 4 at 5:30 pm

Members are invited to bring finger food to share


Speaker: Phil Stoffer, on the Geology of the Appalchian Range, a continuation of the Geology of the United States

If you would like a preview or missed out (!), visit Stoffer's website to view photos and information 


Free admission


123 W. Alvarado St., Fallbrook CA 92028

info@fgms.org www.fgms.org (760) 728-1130



Photo carousel above: 2026 Rough N' Cut March 15 2026, photo credits: Gail Archibald

2025 Fall Festival photos above: so many rocks! How can anyone choose a favorite?!

 Above: images from our 2025 Rough N' Cut on March 16, 2025

Fallbrook Gem & Mineral Society
Museum & Gift Shop

Open Fridays 11 am to 3 pm & Saturdays 10 am to 4 pm

 Free admission 

Closed major holidays

ABOVE: Anza Borrego field trip March 29-30, 2025, led by Jim Anderson

Many thanks to Art Lucas for the photos



Fallbrook Gem & Mineral Society
Lapidary Classes  

For information on signing up for our lapidary course,
please contact us (760) 728-1130 or by email at info@fgms.org


Upcoming events

  • FGMS Board of Directors meeting

    • January 03, 2026
    • December 05, 2026
    • 12 sessions
    • Fallrook Gem & Mineral Society, 123 W. Alvarado St., Fallbrook California 92028

    The elected Fallbrook Gem and Mineral Society Board of Directors meets monthly to review Committee and Event reports, plan and/or address matters pertaining to the operation of the Fallbrook Gem and Mineral Society. Members are welcome to attend. Those wishing to address the Board of Directors can contact President Lea Barton at least five days before the meeting. The minutes and financial reports are posted on the meeting room bulletin board. 

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  • Fallbrook Gem and Mineral Museum open

    • January 09, 2026
    • December 26, 2026
    • 102 sessions
    • Fallbrook Gem & Mineral Museum, 123 W. Alvarado St., Fallbrook CA 92028

    Fallbrook Gem and Mineral Museum plus Gift Shop is open free to the public, this small but mighty "gem" of a museum showcases minerals, fossils and gemstones from San Diego County and beyond. Highlights include a fluorescent room, San Diego Pegmatite, fossil display, rough and cut specimens, and other mineral delights. The Museum Gift Shop offers mineral specimens, books, jewelry, and other related materials. 

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  • Fallbrook Gem and Mineral Museum open

    • February 14, 2026
    • February 06, 2027
    • 52 sessions
    • Fallbrook Gem & Mineral Museum, 123 W. Alvarado St., Fallbrook CA 92028

    Fallbrook Gem and Mineral Museum plus Gift Shop is open free to the public, this small but mighty "gem" of a museum showcases minerals, fossils and gemstones from San Diego County and beyond. Highlights include a fluorescent room, San Diego Pegmatite, fossil display, rough and cut specimens, and other mineral delights. The Museum Gift Shop offers mineral specimens, books, jewelry, and other related materials. 

    Show details

  • 2026 Fall Festival of Gems & Minerals

    • October 11, 2026
    • 9:00 AM - 4:00 PM
    • Fallbrook Gem and Mineral Society, 123 W. Alvarado St., Fallbrook CA 92028

    Join us for a Festival of Gems, Fossils, and Minerals! Over 40 vendors of crystals, jewelry, mineral specimens, gemstones, unusual gift items, Gem ID, bargain booth, lapidary rough and cut, wheel of fortune, kids activities - with a rockhounding trick or treat, food booth, plus a raffle of spectacular prizes!

    Prospective vendors can send an email to fallbrookgems@gmail.com for a dealer application. Applications are due by August 1, 2026. If you'd like to be considered for the 2026 Fall Festival of Gems and Minerals, send an email to fallbrookgems@gmail.com or visit our Museum during open hours (Fridays 11-3, Saturdays 10-4). A list of vendors can be found on our website page Fall Festival Vendors.

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123 W. Alvarado St. Fallbrook, CA 92028
Email: info@fgms.org || Phone: (760) 728 - 1130

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