Jellyroll

[Robiejedi]

I do not recall where I found this 11" stone. Somewhere in Colorado, Utah, Arizona or New Mexico. The cross section looks like a jellyroll or concentric rings.
It has a "T" shape with rings in both sections. Some of the rings appear to be agatized.
Can you help identify this stone.
I will be happy to answer any questions.
Thank you.
Cheers, Robi

 

[IAMZIM]

Heh! That's kinda cool! Probly shouldn't eat though! Ha!

 

[Eu_citzen]

I'd think it's a quartz related rock. Chalcedony perhaps?

 

[huntsman53]

I believe it might be a piece of some type of agatized tree or other woody type plant that is fiberous.


Frank