As to wearability, what the individual feels anaglyph face face is concave and convex seem to be ground more easily, and because crystal face compares level, instead more wear-resisting.

• 至于耐磨性，个人感觉浮雕面表面的凹凸好象更易被磨掉，而水晶面由于比较平整，反而更耐磨。