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China clay which falls under the Kaolinite group of clay is formed by weathering of felspathic rocks. It has a general formula Al2, (Si2O5) (OH)4. It is a hydrated alumina-silicate structure. Free silica which is considered to be the most undesirable impurity is removed by us during the process of sedimentation or by air-separation.
The raw china clay is subject to a refining process including spiral classification, deflocculating, bleaching and finally drying, micronizing, air-classification and surface processing ensures consistent composition. We undergo such processes in order to provide you the material as required by you and assuring a quality product.
Al2O2 32% to 39% , SiO2 55% to 60%