true laterite

例句：

1. 1. The true laterite in the area is incredibly rich in minerals.
   该地区的真石灰岩富含矿物质。
2. 2. The true laterite was mined for its beautiful white color and hardness.
   真石灰岩因其美丽的白色和硬度而被开采。
3. 3. The true laterite has been used as a building material for centuries.
   真石灰岩被用作数百年的建筑材料。