Grolleg Cone 6 porcelain. similar to #15 with more ball clay, making it less white, more plastic and forgiving. Additional silica reduces crazing in some glazes. good for slab forming.  

WC617, #16 Porcelain

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  • Characteristics Cone: 6 Wet Color: Very Lt. Gray Fire Color Oxidation: White Reduction: N/A Texture: Smooth Consistency: Slightly Firm Avg. Shrinkage 2±% 13.9% Avg. Water Absorption 1±% 0.12% COE x 10-6: 5.76