How can you find out how old your shark teeth are?

Well if you find a shark tooth that is black it means that it fell into a black pile of something and stayed there for millions of years. If you find one that is brown it means it fell into something that was brown and stayed there for hundreds of years. And if you are wondering if there are white ones there not they are black or brown ones that have been bleached. Unless you reach into a sharks mouth and rip one out you will never find one! Hope this he lps!