Rensselaer Semi-Weekly Republican, Volume 20, Number 2, Rensselaer, Jasper County, 9 September 1898 — Indestructible Fire-Proof Brick. [ARTICLE]

Indestructible Fire-Proof Brick.

A combination of clays has been hit upon that will produce an absolutely indestructible fire-proof brick. It haa been subjected to a white heat that will melt solid rock and Iron, and, thuogh wholly submerged In such a fire for a long time, it came out wholly unaffected. A thousand ordinary firebrick will weigh three or four tons, while bricks made from this combination of clays wHI only weigh about one-sixth as much. This is an importaht discovery, and it will not be long until there will be a big demand for fire-brick to line smelter furnaces, etc., in treating mine ores.