astrochanite

例句：

1. 1. Astrochants are rare and valuable gems found on the moon.
   天体石是月球上发现的稀有而珍贵的宝石。
2. 2. The discovery of a meteorite in Antarctica has sparked new research into the origins of life.
   在南极洲发现陨石引发了对生命起源的新研究。
3. 3. Astrochants have been used as tools for thousands of years due to their hardness and durability.
   由于其硬度和耐用性，天体石被用于数千年的工具制作。