This thing has me stumped.   The only thing the shape reminds me of, is a tooth from Camarasaurus, but nothing about the texture screams "this is a tooth" to me.   I would have guessed some kind of claw, but it appears to have something akin to a root??     @LordTrilobite, I'm sure I saw that you deal with Kem Kem material quite a bit? Any thoughts?