When repolishing marble, use four carborundum stones, coarse to medium coarse, medium and fine. Lubricating the surface with water, start by grinding with the coarse stone to remove the worst of the scratches and gradually work through the range of stones. Then, apply salts of sorrel – obtainable from builders merchants -to the marble with a damp. Coarse rag and rub it well into the surface. Wash off the salts with warm water and. After the surface has dried, polish it with beeswax.
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