5 ESSENTIAL ELEMENTS FOR CRYSTAL

Not all crystals are equally crystalline. There are sometimes impurities, plus the ionic & covalent amongst molecules can produce vastly distinct buildings from exactly the same content. An excellent example of this are diamonds and graphene.杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的