Baking soda poultice for cleaning stains on Marble which is a beautiful stone used for countertops, floors, etc. It is a metamorphosed limestone & is a relatively soft material veined with a range of colors & patterns. Marble is easily stained, etched, and dulled, so it’s important to know how to take care of it well to make it last for a long time. Read on to learn basic maintenance, stain removal, and tips for keeping your marble looking polished. -from Wikihow
