Kaolin yog ib hom av nplaum thiab pob zeb av nplaum uas feem ntau yog ua los ntawm cov av nplaum Kaolinite. Vim nws dawb thiab zoo li mos, nws kuj hu ua av Baiyun. Nws tau muab lub npe rau lub zos Gaoling hauv Jingdezhen, Jiangxi xeev.

Nws cov kaolin dawb huv yog dawb, mos thiab zoo li Mollisol, nrog rau kev ua kom zoo, tiv taus hluav taws thiab lwm yam khoom siv lub cev thiab tshuaj lom neeg. Nws cov khoom siv hauv av feem ntau yog Kaolinite, halloysite, hydromica, Illite, Montmorillonite, quartz, feldspar thiab lwm yam minerals. Kaolin siv dav hauv kev ua ntawv, ceramics, thiab cov ntaub ntawv refractory, ua raws li cov txheej txheem, roj hmab fillers, enamel glazes, thiab cov ntaub ntawv raw cement dawb. Me ntsis yog siv rau hauv yas, xim, pigments, sib tsoo log, cwj mem qhuav, tshuaj pleev ib ce txhua hnub, xab npum, tshuaj tua kab, tshuaj, textiles, roj av, tshuaj lom neeg, cov ntaub ntawv tsim kho, kev tiv thaiv lub teb chaws, thiab lwm yam kev lag luam.

Cov zaub mov Kaolin yog tsim los ntawm Kaolinite, dickite, pob zeb pearl, halloysite thiab lwm yam zaub mov Kaolinite, thiab cov khoom siv tseem ceeb yog Kaolinite.

Cov mis tshuaj lom neeg ntawm Kaolinite yog 2SiO2 ● Al2O3 ● 2H2O, thiab nws cov tshuaj lom neeg theoretical yog 46.54% SiO2, 39.5% Al2O3, 13.96% H2O. Cov zaub mov Kaolin yog 1:1 hom txheej silicate, thiab cov siv lead ua feem ntau yog tsim los ntawm silica tetrahedron thiab alumina Octahedron. Silica tetrahedron txuas nrog ob-seem kev taw qhia los ntawm kev sib koom lub kaum sab xis los tsim ib txheej hexagonal grid, thiab lub ncov oxygen tsis sib koom los ntawm txhua silica tetrahedron ntsib ib sab; 1:1 hom chav tsev txheej yog tsim los ntawm silicon oxide tetrahedron txheej thiab txhuas oxide Octahedron txheej, uas sib koom cov pa oxygen ntawm silicon oxide tetrahedron txheej.