The compositions of phyllosilicate and iron oxides for several main types of soils and their corresponding iron-manganese nodules were studied by the means of XRD.
The XRD patterns of kaolinic rocks in the coal measure are divided into three types according to the basal reflection intensity of the kaolinite in China.
The effects of different methods and conditions on the structure and surface properties were studied by XRD, nonaqueous solution titration, and decoloring performance on orcein dye.