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.

Found in the agate beds of Southwestern South Dakota and Northwestern Nebraska.
State gemstone of South Dakota.


New for Members Only – New Texting Service

You can now sign up for club text reminders for our upcoming meetings and events.

We are all busy and often forget CMS has an upcoming meeting or event.

To register for this reminder service send a text to the number (888) 731-1000. In the body of the text put 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.

So be sure to take advantage of this service. The only stipulation is that you must be a club member.
The club has reached its first goal of 30 registered members. Our next goal will be 50 members with another prize drawing. The drawing is for just the text service registrants.
Ok members we need only 20 more members to register for our next drawing. So hop to it and enroll in this reminder service. Register now and get in the final drawing!


We have good news! 

Dues for 2021 are only $15 for you or your entire family!

Keep your dues up to date. We now can accept debit or credit cards online and at our meetings. New member signup and renewals under the Membership menu above or click below. Click on the above membership tab!


New Membership


September 18-19, 2021



We have tentatively booked our show for the following dates.
Check back as due to Covid things can change.
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
Great Family Event
Mark your calendar now and plan on attending!
Updated: September 9, 2021 — 5:33 pm