Crystal Secrets
Not all crystals are Similarly crystalline. There are often impurities, and the ionic & covalent between molecules can build vastly distinct constructions out of a similar content. An incredible example of this are diamonds and graphene.③、粗抛光：是将模具压出之毛胚，以金刚石盘直接磨出成品之刻线。④、细抛光：