Specification :
One kind richly including the magnesium fibrous silicate clay mineral, the chemical composition mainly (Si) and the magnesium (Mg) composes for the silicon, often assumes compact massive, earthy or fibrous, generally assumes the white, the gray or slightly brings the light red, dark green and brown. The sense of touch smooth, sticks the tongue, the quality of material to be light, the dryness can float in the water surface, is wet when soft, plastic. And has in a big way compared to the surface area, the adsorption performance, the heat-stable performance are high, thermostable, the electric insulation performance is good, the shrinkage is low, is not easy to crack, as well as anti-salinity higher special performance.