In certain types of quartz,bands of color form an irregular pattern.某种石英,光学的色带形成不规则的类型?

问题描述:

In certain types of quartz,bands of color form an irregular pattern.
某种石英,光学的色带形成不规则的类型?

在某种石英中,(光学的色带)形成不规则的图案.