25 lb. bag of Standard 630 White Stoneware

Standard 630 White Stoneware. This is a Cone 6 stoneware containing fire clay and mullite for enhances thermal properties. Toni Murray at M&M Pottery uses this clay for her casserole dishes (Ovenware) and recommended that we try it. This clay takes our glazes nicely.

Average shrinkage is  13%-14%  Average Absorption is 1.85%