The accompanying picture shows a common stain on a marble floor. In such a situation there is a simple and inexpensive solution that works almost all the time. It is called a poultice. Derived from the Latin word “porridge” a poultice is a liquid chemical mixed with a white absorbent material to form a paste.
To address the problem the poultice should be spread with a spatula over the stained area to a thickness of 1/4″ to 1/2″. Next, cover it with plastic and leave it to dwell for 24 to 48 hours. What is happening is the liquid cleaner draws out the stain into the absorbent material. One important note is that identifying the type of stain is critical because it determines the composition of the poultice.