一个精心设计的缺憾具有多面体外形、瑰丽多彩的晶体自古就引起了人们的注意,成为人们观察和欣赏的对象。晶体是指在结晶过程中形成、具有规则几何外形的固体,晶体为什么具有规则的几何外形呢?因为在晶体里构成晶体的微粒(分子、原子、离子等)是规则地排列的,具有结构的周期性 A well-designed defects with a polyhedron shape, magnificent and colorful crystal has aroused people’s attention since ancient times, become the object of observation and appreciation. Crystal refers to the formation of crystals in the process of crystallization, with a regular geometric shape of the solid, why the crystal has a regular geometric shape? Because the crystals in the crystal particles (molecules, atoms, ions, etc.) are regularly arranged, with the structure Periodic