kernite

例句：

1. 1.The stone has a distinctive texture and color that makes it stand out from the rest.
   这块石头具有独特的质地和颜色，使它与众不同。
2. 2. The stone was found in a remote part of the mountain, where it had been untouched for centuries.
   这块石头在山的偏远地区被发现，它已经数百年未被触碰。
3. 3.The stone was used as a building material in ancient times, but its value has since diminished.
   在古代，这种石头被用作建筑材料，但价值已经降低。