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n. A type of stiff, blue clay, sometimes used for making bricks.

n. A series of beds of clay and marl in the South of England, between the upper and lower greensand of the Cretaceous period.

n. Another spelling of galt.

"What is called a washing brick is now made in various colors, adapted for the lining of interiors, and there are hard bricks of a very pale straw color, known as Beart's patent bricks, made, I believe, of gault clay, which were some years ago bought up by the Great"

Perrault    Renault    Walt    assault    basalt    default    exalt    fault    galt    halt