Good afternoon,
We will be working on some thassos marble tiles in 2 bathrooms in a hair salon. These tiles form a small band around the rooms on the wall and the majority of the tiles look like new (see photo).  Under the hand dryers, however, there is some darkness, particularly around the edges (photo looks darker than actual tiles - they are mostly white).
We are not sure of the cause of the discoloration - it could be from water from those drying their hands - who knows what chemicals or products are being used in a salon.  Is it possible that the hand dryers (which are directly above these stones) could discolor the tiles from heat?
Our plan of attack is to hone and polish these tiles.  Anyone have any other suggestions?  What would be the best way to prevent this from happening in the future?
Stuart Young
Santa Fe Floor Care
Austin TX