It has a prismatic and splintery texture and is abundant in regionally metamorphosed (see metamorphism) rocks such as schists.

具有棱柱形和易碎裂的结构，在区域性变质岩（参阅metamorphism）中富，如片岩。

By reducing the tangential representation set of small covers over prisms to a prime form,this article determines the classification of small covers over prisms up to equivariant cobordism.

本文通过将棱柱的小覆盖的切表示约化到一种素形式,来确定其等变配边分类。