Michigan Rocks

12/06/2025

12/03/2025

12/03/2025

The Petoskey Stone is Michigan's state stone. It's a fossilized coral called Hexagonaria.

11/30/2025

Don't forget about Katydid Rock's charity auction today at 5:00 Mountain Time. I have donated five Petoskey stones and other people have donated many other great rocks for you to bid on. Here is my video showing what I polished: https://facebook.com/reel/815585924685988/

This is the link to Kate's auction: https://www.youtube.com/live/KnY-ZjyLv9g

See you there!

11/29/2025

Sam has been collecting Isle Royale Greenstones while up at Michigan Tech University. While back for Thanksgiving he polished a few up and tumbled others. Come see how they turned out.

11/26/2025

Kate from Katydid Rocks is auctioning off six of my rocks and also other rocks from your favorite YouTube Rock channels. Here is the link to the live auction which will take place at 5 p.m. Mountain time Sunday, Nov. 30, 2025: https://www.youtube.com/live/KnY-ZjyLv9g

This is the GeoGirls Camp: https://www.mshinstitute.org/geogirls

11/26/2025

Kate from Katydid Rocks is auctioning off six of my rocks and also other rocks from your favorite YouTube Rock channels. Here is the link to the live auction which will take place at 5 p.m. Mountain time Sunday, Nov. 30, 2025: https://www.youtube.com/live/KnY-ZjyLv9g

This is the GeoGirls Camp: https://www.mshinstitute.org/geogirls

11/22/2025

Nancy and I spent a gorgeous, dead calm afternoon on Lake Huron finding some great rocks.

Check out Nancy's books:
Slinging Bullets: https://books2read.com/slingingbullets
Trial by Bullet: https://books2read.com/trialbybullet
Faded Spotlight: https://books2read.com/fadedspotlight

11/19/2025

Will it tumble well?

11/15/2025

11/11/2025

11/11/2025

I found a coral fossil on Black River Island and polished it.