What are the colors of kaolin ore?
Containing Fe2O3 was rose red, brown and yellow; containing Fe2+ was pale blue, pale green with pale brown MnO2;
Contains the quality is pale yellow, gray, green, black and other colors. The presence of these impurities, reduced the natural whiteness of kaolin, in which iron and titanium minerals will also affect the whiteness of the calcined, porcelain stains or scars appear.
The color of kaolin is mainly related to its metal oxides or organic matter.
