Kaolin ni amabuye y'agaciro atari icyuma, ari na yo bwoko bw'ibumba n'ibumba rigizwe ahanini n'amabuye y'ibumba ya Kaolinite. Bitewe n'uko isa n'umweru kandi yoroshye, izwi kandi nk'ubutaka bwa Baiyun. Yitiriwe Umudugudu wa Gaoling muri Jingdezhen, Intara ya Jiangxi.

Kaolin yayo nziza ni umweru, yoroshye kandi isa na Mollisol, ifite pulasitiki nziza, irwanya umuriro n'indi miterere ifatika n'iya shimi. Ibigize imyunyu ngugu yayo ahanini bigizwe na Kaolinite, halloysite, hydromica, Illite, Montmorillonite, quartz, feldspar n'indi myunyu ngugu. Kaolin ikoreshwa cyane mu gukora impapuro, ibumba, n'ibikoresho birwanya ubushyuhe, hagakurikiraho irangi, irangi rya rubber, glaze za enamel, n'ibikoresho fatizo bya sima yera. Ingano nto ikoreshwa muri pulasitiki, amarangi, amarangi, amapine, amapine yo gusya, amakaramu, amavuta yo kwisiga ya buri munsi, isabune, imiti yica udukoko, imyenda, peteroli, imiti, ibikoresho by'ubwubatsi, ubwubatsi bw'igihugu, n'izindi nganda.

Amabuye y'agaciro ya Kaolini agizwe na Kaolinite, dickite, amabuye y'agaciro, halloysite n'andi mabuye y'agaciro ya Kaolinite, kandi igice cy'ingenzi cy'amabuye y'agaciro ni Kaolinite.

Formula ya kristalo ya Kaolinite ni 2SiO2 ● Al2O3 ● 2H2O, kandi imiterere yayo ya chemistry ni 46.54% SiO2, 39.5% Al2O3, 13.96% H2O. Imyunyungugu ya Kaolini igizwe na silicate yo mu bwoko bwa 1:1, kandi kristalo igizwe ahanini na silica tetrahedron na alumina Octahedron. Silica tetrahedron ihujwe mu cyerekezo cy’ibice bibiri binyuze mu gusangira inguni ya vertex kugira ngo habeho urwego rwa hexagonal grid, kandi ogisijeni yo hejuru idasangiwe na buri silica tetrahedron ireba uruhande rumwe; Urwego rwa 1:1 rw’ubwoko rugizwe na silica oxide tetrahedron na aluminiyumu oxide Octahedron, bisangiye ogisijeni yo mu gice cya silicon oxide tetrahedron.