Mohs hardness

例句：

1. 1.The diamond is rated at 10 Mohs hardness.
   这颗钻石的莫氏硬度为10。
2. 2.The material has a Mohs hardness of 8.
   该材料的莫氏硬度为8。
3. 3.The metal was found to have a Mohs hardness of 65.
   这种金属被发现具有65的莫氏硬度。