Kaolin yog ib qho khoom tsis muaj hlau, yog ib hom av nplaum thiab av nplaum pob zeb uas muaj los ntawm kaolinite av nplaum ntau. Vim tias nws dawb thiab muag heev, nws tseem hu ua dawb huab av. Nws tau muaj npe tom qab Gaoling Village, Jingde Town, Jiangxi Xeev.
Cov ntshiab kaolin yog cov xim dawb, mos, muag thiab muag muag, nrog zoo plasticity thiab hluav taws kub tsis kam. Nws cov ntxhia muaj pes tsawg leeg yog mas li ntawm kaolinite, halloysite, hydromica, tsis paub ntawv, montmorillonite, quartz, feldspar thiab lwm yam minerals. Kaolin muaj ntau yam kev siv. Nws yog tsuas yog siv hauv papermaking, ceramics thiab refractory cov ntaub ntawv, tom qab ntawd los ntawm txheej txheej, roj hmab sau, txha hniav laus txheej thiab dawb xis mas raw cov ntaub ntawv. Cov nyiaj me me yog siv rau hauv plastics, xim pleev xim, xim, sib tsoo cov log, tus cwj mem, cov tshuaj pleev ib ce txhua hnub, tshuaj ntxuav tes, tshuaj tua kab, tshuaj, textile, roj av, tshuaj lom neeg, cov khoom siv tsev, kev tiv thaiv lub teb chaws thiab lwm yam kev lag luam.