soap-rock


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Noun1.soap-rock - a soft heavy compact variety of talc having a soapy feelsoap-rock - a soft heavy compact variety of talc having a soapy feel; used to make hearths and tabletops and ornaments
talc, talcum - a fine grained mineral having a soft soapy feel and consisting of hydrated magnesium silicate; used in a variety of products including talcum powder