Grim: The black mass is pulled out of the man's belly button (Photo: YouTube) Navel stones are also known as omphaloiths or umboilths and are masses made up of sebum and keratin deposition that oxidises into a solid, black accretion.Feb 29, 2016 read more
An omphalos (ὀμφαλός) is a religious stone artifact, or baetylus. In Greek, the word omphalos means "navel". In Greek lore, Zeus sent two eagles across the world to meet at its center, the "navel" of the world. read more