ganister

Noun

 * 1) A hard, fine-grained sandstone, used in manufacturing silica bricks for lining furnaces.
 * 2) * 1991,, Town of Claysburg - Refractories Company Town , Historic American Buildings Survey, page 2:
 * Like those in southern Huntingdon County, the ridges of southern Blair County were often covered with ganister.

Translations

 * Russian: га́нистер