In the middle of a master bath remodel and a couple days after the tiler installed 12 x 24 Asian White Statuary Marble (before sealing) it is showing rust staining. Mostly around the perimeter of the tile where we are seeing small imperfections or chips. The plumbing isn’t even in yet so no serious moisture introduced save the water in the sponges to wipe down extra grout. No surprise, all involved in the install are pointing fingers. Manufacturer is saying they have never seen it before. Installer is blaming defective product. Anyone have a similar problem. Considering next steps in terms of recourse.