stone fell; damage of impact?

Hi,
       The tombstone I was working on tipped over; it was on a wooden table,
so the base moved not at all, and the top point fell 37".  It's in one piece
alright.  I haven't had the chance to start carving again; but what are the
risks of microfissures affecting final polish, or worse, opening up to real
cracks that could *actually* break it?
        Someone mentioned once that the blasted pink marble in maryland
(limestone?) has hairline faults that don't really affect strength, not for
carving, but do show up when you polish it as white lines.  If that's what
blasting does, then maybe simply tipping over, it should still be sound?

                   thanks!
                      -Bernard