Thesaurus: firestone

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Definitions

1. n. Iron pyrites, formerly used for striking fire; also, a flint.
2. n. A stone which will bear the heat of a furnace without injury; -- especially applied to the sandstone at the top of the upper greensand in the south of England, used for lining kilns and furnaces.
3. n. a piece of flint that is struck to light a fire
4. n. a sandstone that withstands intense heat; used to line fireplaces and furnaces and kilns
5. 1. Iron pyrites, formerly used for striking fire; also, a flint. 2. A stone which will bear the heat of a furnace without injury; -- especially applied to the sandstone at the top of the upper greensand in the south of England, used for lining kilns and furnaces. Ure.
6. n. a piece of flint that is struck to light a fire n. a sandstone that withstands intense heat; used to line fireplaces and furnaces and kilns