from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a soft heavy compact variety of talc having a soapy feel; used to make hearths and tabletops and ornaments
Sorry, no etymologies found.
They wanted a line of collectibles that would stand out, so they developed a soaprock porcelain that could tolerate very hot fluids, especially important for cups, tea bowls, saucers and tea pots.