Note 239 — Chapter XXI · ENGLISH PORCELAIN—(continued). THE SOFT PASTE OF DERBY, WORCESTER, CAUGHLEY, COALPORT, SWANSEA, NANTGARW, LOWESTOFT, LIVERPOOL, PINXTON, ROCKINGHAM, CHURCH GRESLEY, SPODE, AND BELLEEK.
Reading edition
Steatite is essentially a silicate of magnesia. We have seen that a soapy rock, probably of this nature, entered at times into the composition of the porcelain made at King-te-chen. At a later time silicate of magnesia, in various forms, has found its way into the hybrid pastes of Italy and Spain.