Chinaklay

This name has derived from Kao-ling (Chinese:pinyin: Gaoling), a town besides Jingdezhen, Jiangxi province, China. This name has been entered English in 1727 from the French version of the word: "kaolin", following Francois Xavier d'Entrecolles's reports from Jingdezhen.
Kaolinite keep a low shrink-swell capacity and a low cation exchange capacity (1-15 meq/100g). Its a soft, earthy, usually white mineral (dioctahedral phyllosilicate clay), produced by the chemical weathering of aluminium silicate minerals like feldspar. In many parts of the world, it has colored pink-orange-red by iron oxide, giving it a distinct rust hue. Lighter concentrations yield white, yellow or light orange colors. Alternating layers are sometimes found, as at Providence Canyon State Park in Georgia, USA.