monoclinic hemiprism

例句：

1. 1. The crystal structure of the mineral is a monoclinic hemiprism.
   这种矿物的晶体结构是一个单斜六面体。
2. 2.This mineral is known for its unique monoclinic hemiprism shape.
   这种矿物因其独特的单斜六面体形状而闻名。
3. 3.The monoclinic hemiprism has a distinct optical property that makes it useful in certain applications.
   这种单斜六面体具有独特的光学属性，使其在某些应用中非常有用。