comendite jinis rock igneous kang kawangun amarga cooling lan solidification lahar utawa magma. bisa mbentuk karo utawa tanpa crystallization, salah siji ngisor permukaan minangka rocks intrusive utawa ing lumahing minangka rocks extrusive.
albite, amphibole, quartz
metamorphism cataclastic, metamorphism regional
udan biologi, udan kimia, udan mechanical