This is a 74 millimeter Carcharodontosaurus tooth that was buried in mud and minerals for a couple of million years.  Very nice the way it is and also an excellent piece for someone who likes to take field material and prep it themselves.  The sediment is soft and a toothbrush with a little water and dental pick will clean this specimen up nicely.  When you are done you will have a tooth from the "African T rex" that came from the Kem Kem Formation in SE Morocco.