amethystum

例句：

1. 1. The gemstone is said to have healing properties.
   这种宝石据说具有治疗性质。
2. 2. This amethyst pendant is worth thousands of dollars.
   这个紫水晶吊坠价值数千美元。
3. 3.The amethyst mine is located in the mountains near the city.
   这个紫水晶矿位于城市附近的山区。