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1·The genesis of perthite is metasomatic.

条纹长石为交代成因。

2·Perthite is orthoclase or microcline and albite over the product, which is more than orthoclase or microcline albite.

条纹长石是正长石或微斜长石与钠长石交生的产物，其中正长石或微斜长石多于钠长石。

条纹长石

1·The genesis of perthite is metasomatic.

条纹长石为交代成因。