Austin2000 Posted August 1, 2009 Share Posted August 1, 2009 I had found this when i was digging fence post. The soil was a sand limestone & gray clay material. The area where i had found it is about 3 miles from Rock City which had the Dakota formation from the Cretaceous Period. This was found about 3 feet down on an embankment. I'm just curious on what it is it fairly heavy and it really doesn't look like a Geode. And it's about 2" round without the vain like part. Any input would be great Thanks Austin Link to comment Share on other sites More sharing options...
Auspex Posted August 1, 2009 Share Posted August 1, 2009 I'd call it an iron concretion. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Austin2000 Posted August 1, 2009 Author Share Posted August 1, 2009 I'd call it an iron concretion. Hello Auspex Thanks for the info. also if their iron would a magnet attract to it i had tried but it doesn't.? Thanks Again Austin Link to comment Share on other sites More sharing options...
PaleoRon Posted August 1, 2009 Share Posted August 1, 2009 Siderite concretions are low grade iron ore and are not typically magnetic. Link to comment Share on other sites More sharing options...
Austin2000 Posted August 1, 2009 Author Share Posted August 1, 2009 Siderite concretions are low grade iron ore and are not typically magnetic. Thanks PaleoRon I guess the case is solved. So this is a mineral and not a fossil. Thanks Again Austin 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