amethyst

例句：

1. 1. The amethyst necklace was the perfect gift for her birthday.
   那枚紫罗兰项链是给她生日的完美礼物。
2. 2. The amethyst gemstone is highly sought after for its beauty and rarity.
   紫罗兰宝石因其美丽和稀有而备受追捧。
3. 3.Amethyst is often used in jewelry to symbolize purity and innocence.
   紫罗兰常用于珠宝中，象征着纯洁和纯真。