经系统研究发现 ,具粒状变晶结构的翡翠玉件的表面或多或少存在一些特殊的微观形貌 ,它们是一定内部结构、构造在不同加工条件下的必然反映 ,即表面组构。玉件表面的碎裂形貌有原生或后生碎裂结构、机械剥离结构和酸洗腐蚀结构 3种成因。它们各具特征 ,但因彼此有成因联系 ,有时也十分相似。特别是酸蚀后的碎裂部位是胶质物最主要的潜在赋存空间。在注胶工艺相同的条件下 ,胶的显著程度主要取决于碎裂部位的形态、大小、多少及分布 The systematic study shows that there are some special microscopic appearances on the surface of the emerald jade pieces with the granular crystal structure, which are the certain internal structure and the inevitable reflection of the structure under different processing conditions, namely the surface texture. On the surface of the jade pieces, there are three kinds of fractures, which are primary or epigenetic fragmentation, mechanical stripping and pickling corrosion. They each have their own characteristics, but because of their causal relationship with each other, sometimes very similar. In particular, the acid-fractured site is the most important potential storage space for colloidal materials. In the plastic injection process under the same conditions, the significant degree of plastic depends mainly on the shape of the fragmentation site, size, size and distribution