we found this really wierd bone at robins hood bay,when we found it was black
now its turned pale and its quite heavy for a bone please try and find the id
I on't believe this is a bone. I'm afraid I can't identify exactly what it is but I have read about a rare type of rock which can change colour as moisture disappears. Was the bone wet when it was found, and dry when it was pale? If so, you have found an extremely rare specimen. Congratulations!