The Mother Lode Mineral Society
Our Club

We are a 501(c)(3) educational non-profit organization.
Established 1936

Our club is devoted to educating, enlightening and educating its members and the public in many areas evolving from its mission in the earth sciences and lapidary arts. The club participates in, teaches and promotes classes at the Modesto Junior College in beginning and advanced lapidary, beginning and advanced jewelry making, lost wax casting, stone setting, wire wrapping, beading, gem carving, intarsia and faceting.

Additionally we have programs at our club meetings on fossils, geology and florescent minerals for our junior and regular members as well as participating in regularly scheduled field trips to seek out and collect rocks, minerals and fossils.

Club Meetings

Annual Summer BBQ

This Sunday is our first live meeting in over a year and we're celebrating it big time with a BBQ and Sale-A-Thon at the Tuolumne River Lodge, and we want to see you there IN PERSON! MLMS will provide chicken, hotdogs (and condiments), corn, chilled water, and cake. Since this is not a potluck, please bring side dishes for your family.

Not only are we having a BBQ, but our first non-zoom General Meeting, as well as a Sell-A-thon by some of our members. We will have a booth selling some of Loren Jamison's equipment that his family donated to the club. David Givens will be there cutting geodes and Janet will have books and slabs for sale. Loraine will be selling slabs and Debbie Bettencourt will be selling items from her collection. If you have items to sell, come on down, grab a table, and pay the $10 fee, I'm sure you'll make some sales. Of course, if you're like me you'll end up buying more rocks with your profits.

Due to California regulations, face masks will be required during the indoor meeting (except when eating) but are not required for the Sale-A-Thon which is held outside.

Due to the BBQ and the predicted heat wave no Junior program will be offered though Juniors are welcome to join us for the BBQ.

To ensure we have enough food please email and let me know how many are coming. Don't worry if you forget, we'll have extras.

June 6th Board Meeting

3500 Oakdale Rd, Modesto

June 12th General Meeting
SeeAnnouncement above
General Meeting Location
Tuolumne River Lodge
2429 River Rd., Modesto, CA 95351

The Mother Lode Mineral Society is one of the premier gem and mineral clubs in Central California with a prize winning monthly publication called the Ghost Sheet and one of the largest annual Gem, Mineral and Fossil shows in the state. During this time, our normal monthly meetings are suspended. We are trying out virtual online meetings for members.

What we do as a part of our club.

Annual Show


Junior Rockhounds



Shows & Events

Rockhounding can take you places.
awesome rock towers
star trek?
ancient petroglyphs
Where you can make amazing finds.
clear obsidian
priday plume
oregon rocks!