Even a single polymorph of silica can take on a huge variety of forms.

即便是二氧化硅的一种多晶体都可以有大量的组成型态。

Silica, the mineral that makes up sand and quartz, also has lots of different polymorphs.

组成砂砾和石英的二氧化硅也有许多不同的多晶体。