Fire brick

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a refractory brick, capable of sustaining intense heat without fusion, usually made of fire clay or of siliceous material, with some cementing substance, and used for lining fire boxes, etc.

See also: Fire

References in classic literature ?
You see, it was like this: you know that fancy brickyard they're gettin' ready to start for makin' extra special fire brick for inside walls?
The barrel vault on top of the fire brick is a mixture of clay and volcanic cinder.
Specializing in wood fire brick oven pizza, the “Shop Small Special” is a pulled pork sandwich with a choice of sides for $6.
The two mines are Fire Brick Mine and Sable Elegance Mine, which are approximately seven miles apart.
It will be available in seven body colours, Pearl Metallic Arctic White, Midnight Black, Silky Silver, Glistening Grey, Clear Beige, Chocolate Brown and Fire Brick Red and will be offered in four trims - VXi, VXi+, ZXi, and ZXi+ and VDi, VDi+, ZDi and ZDi+.
Coal is widely used as a fuel to heat homes, public toilets and fire brick kilns.
The club is also currently working on new upcoming projects such as the Paper Fire Brick Project as well as recycling plastic by weaving door mats from recovered shopping bags.
The lorry was built in 1937 at the Sentinel Works in Shrewsbury and then sold to Castle Fire Brick in Buckley.
Former brick maker John Cooksey has been researching and writing about the history of fire brick making in England's Black Country for the past 40 years to produce his labour of love, the recently published 'Brickyards of the Black Country - a Forgotten Industry'.
The earliest and largest of the enterprises was the Laclede Fire Brick Company, which began in 1844 and expanded rapidly with the arrival of the railroad.
Magnesium oxide is a natural mineral used for hundreds of years to make fire brick," says Carmen Palmer, vice president and co-owner of Air-Krete maker Palmer Industries.
Due to th, density of th, loads, th, fire brick firings each took almost thirty hours and a shockiog twenty-four hours to cool.