u/Middle-Charity-7095

Found this on Bornholm in a place called Arnager. Chatgpt wrote this about the age of the place: The Arnager succession on Bornholm comprises two main Late Cretaceous units: the Arnagergrønsand (Arnager Greensand Formation), which dates from the Middle Cenomanian (approx. 99.6 to 93.5 million years ago.

I have found a lot of shark theet at the location but nothing like this. Looks like something for grinding and not cutting like shark teeth.

Hope you guys could help me out.

Kind regards

Well we found this rock, I think it is limestone but I don't know what the mineral might be. Does anyone have an idea to clean it? Can it become all white? Or is this the color it has?

Kind regards