Yesterday i looked at a large master bath floor of polished 12 x 12 , it appears to be some sort of engineered marble containing crema marfil. Recently the cleaning lady spilled vinegar water used for window washing and left it to dry,There is a perfect etched  area where the water sat and the etching is deep enough to feel

  However: the etching is consistant on the entire area, it is the same on the areas of stone i know to be marble, as the areas i suspect to be engineered,Also lippage is fairly extensive and the floor will require grinding with metal discs

Dose anyone have any experence with this kind of stone?

can i use 70 grit metal and polish with resin or combination resin / powder?

 

thanks in advance for any help you guys can give

"Big Blessings"  Scott Wilson      Wilson Stoneworks Inc