So, foliation of phyllites is different from the foliation in slates that stems from clay mineral alignment, and distinct from foliation in schists due to the fact schists often contain seen mica grains. Like slates, phyllites show fissility. Actually, having said that, even if you are looking at rocks on https://social-lyft.com/story2433382/a-simple-key-for-rock-cycle-video-unveiled