| Symbol | Al₂Si₂O₅(OH)₄ |
|---|
This is a short overview — for the full history, value over time and notable mines, see China Clay →
A soft white clay (kaolin), formed by the natural decomposition of granite and traditionally worked by blasting it from the rock face with high-pressure water jets before settling, refining and drying. Used mainly in papermaking, as a coating and filler, and in ceramics, paint and rubber.