clipped

Has it occured to you that the shop may have installed the tabletop
upside down. See if you can put the smooth side up. If it looks OK
then that's probably how it should be.

As for cleaning stains Fantastik or Windex, a common household cleaner
is usually quite effective.


Fantastik is a great grease remover but not supposed to be used on glass
- it will etch glass. Ask me how I know )

If the mark is grease, mineral spirits may remove it. Takes crayon off
stuff nicely. Then wipe with soapy cloth and rinse.