kaolin

详情

general
 
Kaolinite is a industrial minerals, with the chemical composition Al₂Si₂O₅(OH)₄.
Is clay rock formed due to dissolution of granite ,or vertical lenses form or sedimentary layers near the surface . may contain greater or lesser quantities of related sheet silicates (mica, illite, chlorite, smectite) and quartz .
- it is inert mineral so not chemically effected , and have power in covering and hidden if it used as coloring agents in filler, painting and tanning leather .
It is also used industrially because its capability to adsorb water , weakness to transmitted temperature and electricity , and it is very cheap ,