The material that goes into the making of a soapstone fireplace is called a schist by geologists; this refers to rocks that have a definite grain similar to wood, and includes marble and shale as well as soapstone. Soapstone differs from marble however in its inert properties. Whereas marble can become stained and/or discolored if it comes in contact with other substances, soapstone is virtually impervious to such deep, penetrating stains. Cleaning is as simple as wiping or light sanding with fine sandpaper or steel wool. A soapstone fireplace will develop a rich patina over the years unless treated with mineral oil sealers; however, many who have a soapstone fireplace leave well enough alone, finding that such a patina adds to the aesthetic value.

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