Sewer backup

Our sewer line backed up flooding half the house. Both bathrooms have travertine floors and the master bathroom shower is a peach travertine. There isn't noticeable stains but the water/sewage was ankle high even in the shower. I wanted to know if chemicals, etc. in the sewage could have damaged the tiles and we just can't see it yet. I know that we can't get the same exact tiles again but we have this travertine throughout the house.