Cascade Mineralogical Society – Kent, Washington


Cascade Mineralogical Society is a non-profit educational organization. Our club is a proud member of the Northwest Federation of Mineralogical Societies, the American Federation of Mineralogical Societies, and the Washington State Mineral Council.

We welcome individuals interested in geology, mineralogy, paleontology, gems, and related lapidary arts to join us. The objective of the club is to stimulate interest in the study of the earth sciences, lapidary arts, and related subjects. These goals will be accomplished through educational presentations, personal experience, and demonstrations at club meetings and other public presentations. The club also provides opportunities for field trips, rock collecting, and social gatherings. We are located in Kent, WA.

You are welcome to join us as a guest – so check us out!

All are welcome and membership is open to everyone.

Thunder Egg, Deming, New Mexico
(Beautiful picture thunder egg.)

New for Members Only – New Texting Service

We are all busy and often forget CMS has an upcoming meeting or event. 
We have a texting service to remind members of CMS meetings and events.
To register for this reminder service, send a text to (888) 731-1000. In the body of the text, type the word rocks. Or scan the QR code with your smartphone, select “Send SMS,” it will auto-insert the word rocks. Now hit send.

No matter how you register, you should receive a confirmation back that you are registered. If you do not receive a confirmation, try to register again.

If you continue to have trouble registering please send a message via the “Contact Us!” tab on our website.

The stipulation is must be a club member. You can opt out of this service anytime by responding with STOP.

Very soon all members are going to be entered into the texting service. If you do not wish to receive club reminders just reply with STOP and you will be removed.


We have good news! 

Dues for 2021-2022 are only $25 for you or your entire family!

If you join or renew now through 12/31/2021 your membership is good until 12/31/2022.
 We now accept all debit or credit cards online or at our meetings. 


New Membership


Our Gem Show is a go for 2022!
August 20 & 21, 2022
Saturday 10 – 6 PM and Sunday 10 – 4 PM
Green River College, Phys. Ed. Facility
12401 SE 320th St., Auburn, WA 98092
Free Admission & Parking

You will find everything from rough to finished gemstone jewelry!

Free polished rock for every child and free kids activities. 

Great Family Event
Mark your calendar now and plan on attending!

If you would like to be a vendor please click here and include your name and contact info.

Updated: January 18, 2022 — 11:02 am