armangite

例句：

1. 1. The coral stone is a popular tourist attraction in the area.
   这个珊瑚石是该地区的热门旅游景点。
2. 2. The coral stone has been used for centuries as a decorative element in jewelry.
   这个珊瑚石被用作珠宝装饰元素已有数百年历史。
3. 3. The coral stone was discovered on the beach by a local fisherman.
   这个珊瑚石是当地渔民在海滩上发现的。