Worldwide Rock Tumbling Contest

2022 Worldwide Tumbling Contest!

Update: August 31, 2022

The Feather River Lapidary & Mineral Society, Inc. would like to congratulate the top 3 winners of our tumbling contest:

  • 1st place winner: Sam Cook, Alpena, MI
  • 2nd place winner: Matt Johnson, Hitchcock, TX
  • 3rd place winner: Zachary Belknap, Longmont, CO

This was possibly our most difficult and competitive contest to date. As the returned stones were sent back to me I couldn’t help notice just how beautiful they were. You were sent 3 pounds of Lahonton agate, everyone getting the same rock that mother nature created in the state of Nevada. All rock returned were very well done and polished beautifully.

It took our 5 judges just over 4 hours to pick the top three winners. I would like to thank Shawna, Daniel, Sue, Mark and Julie for spending so much time to look over each and every stone returned to us. It was interesting to hear their comments while they were working. They were particularly amazed over some of the druzy pockets created by the tumbling process. And most of you removed the polish within those pockets. Great job to all our tumblers. Even the smaller stones returned were absolutely amazing. 

We took all the natural flaws within the rock in to consideration as we do every year. We know all rock is not created equally. But that is the whole nature of the tumbling contest. Everyone has the same chance when the rock is sent to you. 

Everyone’s stones will be displayed at our rock show September 17 & 18. We will have pictures of that display on our website and facebook page soon after our show. Keep an eye out for information about the up-coming 2023 contest.

Once again, congratulations go out to our top three winners!

Lori Millard, FRLMS Inc Tumbling Chair



Tumbling Contest Rules:

Update: November 29, 2021

The rock for 2022 is Lahontan Agate from the western Nevada. Entry fee is $35 for 3 pounds of rough rock for continental US residents. This includes shipping the material to you. Outside the USA will be $35 plus any additional shipping.
Contest rules and application (pdf). Form is fillable via free pdf software.

  • 3 lbs of rough rock will be shipped to you when the application and payment is received beginning in early January 2022.
  • Deadline for application is June 1, 2022.
  • Mail 5 (yes only 5) of your best finished rocks and a copy of the entry form postmarked no later than August 15.
  • Apply early in the year to have plenty of time to tumble. Take your time tumbling!
  • Cash prizes = $250, $100, and $50 for first, second, and third place winners!

To enter the contest:

  • Digitally: Download and fill out the application linked above and email the completed form to (save completed document to your computer or print to pdf). Mail your payment to the address below.
  • Hard Copy: Download, fill out, and print the application. Mail the application in with your payment to the address below.
  • Payment by Mail is required!
    Please make check or money orders payable to “FRLMS” and mail to: Tumbling Contest, c/o Lori Millard, 2660 Cherokee Road, Oroville, CA 95965

For more information, call Lori at (530) 533-2968 or email

Results will be posted on Facebook and here after the show in mid-September.

Previous Worldwide Tumbling Contest Pages


Rock Tumbling Information … learn about using 1,000 grit has the largest library of rock tumbling articles.

Tumble Masters

Rock and Gem Magazine article in March 2015

The history of rock tumbling.

Winning 2022 Tumbled Rock:

1st Place Sam Cook, Alpena, MI
1st Place: Sam Cook
2nd Place: Matt Johnson
3rd Place: Zachary Belknap