Hence, foliation of phyllites is different from the foliation in slates that stems from clay mineral alignment, and various from foliation in schists because schists often include noticeable mica grains. Like slates, phyllites show fissility. in more than one way. All 3 rock forms can be eroded and metamorphosed. Igneous https://bookmarks4seo.com/story13173286/the-ultimate-guide-to-the-rock-cycle-for-kids