He kohuke kore-whakarewa te Kaolin, he momo uku me te toka uku i hangaia mai i ngā kohuke uku o te rōpū Kaolinite. Nā tōna āhua mā, ngawari hoki, e mōhiotia ana ko te oneone Baiyun. I tapaina i muri i te Kāinga o Gaoling i Jingdezhen, Porowini o Jiangxi.

He mā, he ngawari, he rite ki te Mollisol tōna kaolin parakore, he pai te kirihou, te ātete ahi me ētahi atu āhuatanga ā-tinana me te matū. Ko te nuinga o ngā kohuke he Kaolinite, he halloysite, he hydromica, he Illite, he Montmorillonite, he quartz, he feldspar me ētahi atu kohuke. He whānuitia te whakamahinga o te Kaolin i roto i te hanga pepa, i ngā uku, me ngā rauemi ātete ahi, ā, whai muri ko ngā paninga, ngā whakakī rapa, ngā karaihe enamel, me ngā rauemi mata sima mā. He iti noa te whakamahinga i roto i te kirihou, te peita, ngā tae, ngā wira huri, ngā pene, ngā whakapaipai o ia rā, te hopi, ngā patu pepeke, ngā rongoā, ngā kakahu, te hinu, te matū, ngā rauemi hanga, te tiaki whenua, me ētahi atu rāngai ahumahi.

Ko ngā kohuke kaolin he mea tito mai i te Kaolinite, te dickite, te kōhatu pērara, te halloysite me ētahi atu kohuke tautau Kaolinite, ā, ko te wāhanga matua ko te Kaolinite.

Ko te tauira matū tioata o te Kaolinite ko 2SiO2 ● Al2O3 ● 2H2O, ā, ko tōna hanganga matū ariā ko 46.54% SiO2, 39.5% Al2O3, 13.96% H2O. Nō te silicate paparanga momo 1:1 ngā kohuke Kaolin, ā, ko te nuinga o te tioata he tetrahedron silica me te Octahedron alumina. Ka honoa te tetrahedron silica i te taha rua-ahu mā te tohatoha i te koki tihi hei hanga i tētahi paparanga whatunga hexagonal, ā, ko te hāora tihi kāore i tohatohahia e ia tetrahedron silica e anga ana ki tētahi taha; ko te paparanga waeine momo 1:1 he paparanga tetrahedron silicon oxide me te paparanga Octahedron konumohe oxide, e tohatoha ana i te hāora pito o te paparanga tetrahedron silicon oxide.