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A very fine grog makes for a more forgiving body with a slight texture and minimal speckling.
Oxidation ( First Image), Reduction ( Second Image).
Wet Color: Light Gray
Firing Color: Oxidation: Off-White - Reduction: Gray-White
Texture: Slightly Coarse
Penetrometer Target: 6.75
Avg. Shrinkage 2±%: 11.0%
Avg. Water Absorption 1±%: 2.75%
COE x 10-6: 5.72