为什么九华山有些岩石是肉红色？这种岩石是正长花岗岩，肉红色来自主要矿物钾长石，其他主要矿物有粒状白色透明的石英，黑色黑云母。这三种矿物是正长花岗岩的主要矿物。矿物粒径5～10mm。 Syenogranite Why do some rocks in Jiuhuashan appear flesh pink? This kind of rock is syenogranite. And its flesh pink color comes from the main mineral potassium feldspar. Other main minerals are white granular transparent quartz and black biotite. The three minerals make up main part of syenogranite of 5～10mm mineral grain sizes.