This thing looks pretty bizarre. It's very dense, and has no tongue-sticking, so I think it's just a strange looking, bad-tasting rock. Every time my son or I tried to see if there was any tongue-sticking on the small black section, we were running to the kitchen to wash our mouths out--very sour, metallic taste. I'm worried we tasted dino poop.
Or is this just some rock that should have stayed in the ground?