gypsum limestone converted

  • Lime: A Civilized Plaster - Traditional Building

    Jan 26, 2017 · Like gypsum rock, limestone must be baked in preparation for its use as a plaster. Unlike gypsum however, this occurs at a higher temperature that makes it a moderately energy intensive process. Limestone can be efficiently baked at temperatures starting at 1500 °F. At this temperature lime "calcines" or off-gases carbon dioxide, CO2.

  • Anhydrite Mineral | Uses and Properties