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（参阅metamorphism）中非常丰富，如片。

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.

通过将棱柱上的小覆盖的切表示约化到一种素形式,来确定其等变类。