the investigation showed that the rock is actually black limestone, with enclosed fossils connecting the stone to either Ireland or Belgium. The oldest known “black marble” tombstone in the ...

As much as we know about Plymouth Rock, there's one piece of stone that ... In the heart of historic Jamestown, Virginia, a mysterious black limestone tombstone has been turning everything ...

Those pre-historic peoples who traveled the Great Basin may have seen the Black Rock itself crash down from the nearby Oquirrh Mountains, leaving that massive lump of limestone near the water's edge.