Fig. 3.-Intergranular albite grains at the contact of two K-feldspars

The intergranular albite grains are divided into two rows and contain relicts of perthitic albite (clearly seen under crossed polars plus quartz plate). Fig . 3A from Naqin leucogranite, Taishan County, Guangdong Province. Fig . 3C from Wulingshan quartz syenite, Hebei Province.