It's happened, again. A guy had travertine installed in his house. He noticed this fossil and was asking for an ID/confirmation. Several dentists and forensic anthropologists showed to let him know it is a human mandible. Turn out the travertine is from Turkey, and it's an important fossil... early human. Researchers have reached out to him.
So...Indian Burial Ground; Variations on a Theme?
It'd be just my luck that my home improvement project would turn into a dig. Sorry sir, but you can't use your kitchen...FOR SCIENCE!