I have recenlty installed some polished statuario marble in a shower. I have notices a few of the tiles (as well as the vanity top) seem to be pitted (little gouges meaure about 1mm wide by 1-2 mm in length). At first I thought I may have inadvertently scratched them, but the location and dimensions of these blemished makes this unlikely. My guess is that these are naturally occuring voids that become apparent when the stone is polished.
How should these pits be treated- should I try to fill them with something (say epoxy) and then seal the tiles or should I just let them be? My concern is that the pits themsleves are unpolished and thus more prone to absorption than the rest of the tile(s).