Number 1 w/Grog Cone 6 Clay. Formulated with fine grog for sculptural work - this clay fires to a warm brown color at cone 9. Number 1 Stoneware with Grog may be used on the wheel by those who like a stout, toothy clay. It turns brown when fired in oxidation and deep brown in reduction. Fires Between Cone 6-9, 2232-2300° F. Shrinkage rate is 
Cone 6 - 8.9%, Cone 9 - 10.5%. Best use is Sculptural work. Color is brown-oxidation and deep brown-reduction.