chalybite

例句：

1. 1. The gemstone is said to have healing properties.
   据说这种宝石具有治疗性质。
2. 2.The quartz crystal was polished to a high shine.
   石英晶体被打磨得非常光滑。
3. 3. The chalybite mine is famous for its beautiful blue stones.
   这个水晶矿以其美丽的蓝色石头而闻名。