sebastianite

例句：

1. 1. The mineral is named after the city of Sebastopol in Russia, where it was first discovered.
   这种矿物是以俄罗斯的塞巴斯托波尔城命名的，它是在那里首次被发现的。
2. 2.This type of mineral is often found in ancient volcanic rocks, and its unique crystal structure has fascinated scientists for centuries.
   这种矿物通常在古老的火山岩石中被发现，其独特的晶体结构多年来一直吸引着科学家的关注。
3. 3. In the field of gemology, sebastianite is used to create beautiful jewelry and decorative items.
   在宝石学领域，塞巴斯蒂安石被用来制作美丽的珠宝和装饰品。