TERRACOTTA CLAY Suitable for handbuilding or throwing. Excellent working characteristics, easy to dry and fire. Fires orange to brown depending on temperature. Soft orange at 1000oC darker red/ brown at 1100oC. Bisque Cone 06 (1000oC) Glaze Cone 06-01(1000-1150oC). Grog size #50. Contains fine sand for added workability and strength.