Jump to content

Coprolite or Iron Concretions?

Recommended Posts


Any thoughts on these three? Found in Big Brook, Monmouth county NJ. 


They were not together. Don't appear they are from a fire. The area has tons of iron concretions, but these seemed to stick out differently. 


Any thoughts if they may be coprolite? 








Link to post
Share on other sites

I've collected many thousands of both marine and terrestrial coprolites and have never seen a coprolite cracked like that.  I've collected hundreds of lignitized fruits and seeds cracked like that but these specimens look much more like ironstone concretions to me.


Marco Sr.

  • I found this Informative 2
  • Thank You 1
Link to post
Share on other sites

I've collected similar items after being told they were coprolites. Later I read that the common finds on that beach had once triggered a minor, false, gold rush. Eventually they all decay this way if not stored in oil. 

  • Thank You 1
Link to post
Share on other sites

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 account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...