Cone 6 White porcelain. Wins most vitrified award. Super smooth and creamy. Glazes are bright and brilliant on this clay. Great if you are staining clay bodies with mason stains or oxides (Nerikomi/Agateware). Cone 6 Shrinkage 13.0% Absorption 0.3% Gray (White) Stoneware. This is the clay we used to provide in the communal buckets.