The Craft and Art of Clay: A Complete Potter's Handbook
Susan Peterson
... wollastonite 20%, ball clay 20%, plus Mason stain 6600 1 5%; stoneware body Be1ow left Elaine Coleman: ice-blue celadon, cone 10 reduction: potash feldspar G200 46%, barium carbonate 16%, china clay 6%, silica 32%, plus yellow iron ...