Yesterday it snowed and I tried to get rid of some snow because otherwise my terrace is very slippery. Now that the snow has melted, these white scratches have appeared. I read that you can correct them by using some sort of pen, but you need to know what kind of tiles you have. I have absolutely no clue what kind of stone this. Can anyone recommend what I should do or help me finding out what kind of stone this is?http://bit.ly/2G6Yz03 via /r/DIY http://bit.ly/2SsEOpT
