一、条纹长石之性状正长石中常见有多数钠长石之透镜状小晶,沿正长石之100等面作平行排列,二者之010面则彼此平行,具有同一之光学位置。此种构造称为条纹结构(PerthiticStructure),具有条纹结构之长百名条纹长石(Perthite)。条纹长石之底晶曰主晶(Main Crystal),其中之包体曰分晶(Partial Crystal)。分晶在显微镜下由其特有之 First, the characteristics of striped feldspar feldspar is common in the majority of albite lenticular small crystals, along the ortho-feldspar 100 equal parallel arrangement, the two sides of the 010 plane are parallel to each other, with the same optical position. This structure is called the Perthitic Structure, with hundreds of Stringed Barite structures with a striped structure. Striped feldspar at the end of Crystal said the main crystal (Main Crystal), which package said crystal (Partial Crystal). Separation in the microscope by its unique