Phyllosilicates are a group of minerals characterized by their layered structure, which consists of sheets of silicate tetrahedra. These sheets are held together by weak bonds, allowing them to easily separate into thin flakes. Common examples of phyllosilicates include mica, chlorite, and talc. Phyllosilicates are important in various geological processes and are often found in metamorphic rocks. Their unique properties make them useful in industries such as cosmetics, ceramics, and lubricants. Additionally, they play a significant role in soil formation and fertility, contributing to the overall health of ecosystems.