![Gray Cement vs. White Cement | Hunker](/e69yszg/55.jpg)
Gray Cement vs. White Cement | Hunker
Gray cement obtains its color from raw materials that contain iron, manganese, chromium and magnesium oxides. To produce white cement, manufacturers must use limestone or other raw materials that contain very low levels of these oxides. White concrete cement must contain aggregates, such as marble, that do not add color.