花岗岩体的球状风化产物，其表层风化物被剥离以后，风化的残余部分多呈球形，故称石蛋地貌。由于多具砂性，疏散易蚀，故花岗岩山坡又易引起严重的水土流失，沿节理常有沟谷发育。 After the surface weathering products are peeled off, the weathering residuals are mostly spherical, so it is called the "Spherical stone landform". Due to its sandy nature and easiness to be eroded by evacuation, serious water and soil loss can easily take place on the granite hillside and gullies along the joints were often developed.