aegirinite

例句：

1. 1.This mineral is a rare gemstone thathas been used for centuries.
   这种矿物是一种罕见的宝石，被使用了几个世纪。
2. 2. The aegirinite deposits are locatedin the southern part of the country.
   这些矿床位于该国南部。
3. 3. Aegirinite is atype of mineral that is foundin many different environments.
   Aegirinite是一种在许多不同环境中发现的矿物类型。