kaolin sand

例句：

1. 1. The kaolin sand is used in the production of porcelain.
   高岭土砂用于生产瓷器。
2. 2.The kaolin sand is a natural mineral that can be found in many places.
   高岭土砂是一种天然矿物，可以在很多地方找到。
3. 3. The kaolin sand was used to make bricks and tiles.
   高岭土砂被用来制作砖块和瓷砖。