Who knows kaolin? Please, great God!
Most of them are crystalline, dispersed, powder and loose. White or light gray, light green, yellow, red and other colors, white streak, earthy luster. Mohs hardness of 2-2.5, the proportion of 2.6-2.63. Strong water absorption and water has plasticity, sticky tongue, dry lumps with rough feeling. Kaolinite is the main mineral of kaolin and is often found in the weathering crust of magmatic rocks and metamorphic rocks. China's famous kaolin producing areas are Jiangxi, Jingdezhen, Jiangsu, Suzhou, Hebei, Tangshan, Hunan, Liling and so on.
Kaolinite is a dense or loose mass, usually white. If it contains impurities, it is beige. Gaoling stone weathering or deposition into kaolin and kaolin is made of ceramic raw materials. In addition, kaolin can also be used as chemical filler, refractory material, building material, and so on. It is widely used. There is a kaolin village in Jiangxi, Jingdezhen, China, which is rich in kaolin. Hence its name. At the end of the Ming Dynasty, the mine was mined in kaolin village of Jingdezhen. It was introduced into the world mineralogy by German geologist Richthofen according to the transliteration of kaolin into "Kaolin".
Kaolinite is a product of natural alteration of feldspar and other silicate minerals and is an hydrous aluminosilicate. It also includes dickite, nacrite and halloysite and similar components but amorphous allophane, so they belong to a called clay mineral.
