Follow these steps to remove tobacco stains from Alabaster or Marble:
- Wipe the surface with a cloth dipped in a solution of washing soda and water.
- Rinse well and wipe dry. If a stain persists, mix a few drops ammonia with 1 cup of 3% hydrogen peroxide.
- Soak a white blotter in the solution and place over the stain. Weigh it down with a piece of glass or other heavy object.
- Continue applying the solution until the stain has been bleached out.