Plastic clay for wheel and modeling. The addition of granular manganese gives a speckled surface. The ideal temperature for developing best color tone is cone 5. Good results may be expected in reduction or oxidation firing. Suggested bisque temperature C/04. Shrinkage: 12% at C/4, 12.5% at C/6. Absorption: 4.5% at C/4, 2.5% at C/6.