JBkansas Posted May 30, 2022 Share Posted May 30, 2022 (edited) Rod shaped structures with central cavity, shape reminded me of urchin spines. Bryozoan and coral in background. I thought about weathered coral but the structures seem too straight. Smaller rock with similar but larger structure on back. Edited May 30, 2022 by JBkansas Link to comment Share on other sites More sharing options...
JBkansas Posted May 30, 2022 Author Share Posted May 30, 2022 (edited) Some higher res shots. Smaller fragment: Edited May 30, 2022 by JBkansas Link to comment Share on other sites More sharing options...
FranzBernhard Posted May 30, 2022 Share Posted May 30, 2022 Yes, sea urchin spines. They should be monocrystalline, that means, they break into pieces with flat, shiny surfaces (like crinoid bits). Franz Bernhard 1 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now