Crude kaolin clay is almost white in color and contains from 20 to 25 percent water.
Industry has developed a lively interest in kaolin, as more and more uses have been found for the versatile powder
There it is dumped directly or carried by conveyor into dry storage sheds.According to the moisture content, it may feel almost dry to the touch, soapy, or slick as mud. The clay now called kaolin
was discovered in China more than 30 centuries ago and added luster to the fine porcelain china of ancient times. There are conflicting stories
of how it got its present name.
Like all clays, kaolin is basically a hydrated aluminum silicate, plastic when wet and permanently hard when fired. "Clay" refers to a physical condition not to chemical composition. This varies with different types of clay.Huge mechanical shovels, drag lines, tractors and graders ship the overburden of earth from the clay, then take out the crude clay itself for removal to the processing plant.
Crude kaolin clay is almost white in color and contains from 20 to 25 percent water.