Framework silicates, also known as tectosilicates, are a group of silicate minerals characterized by their three-dimensional framework structure. This structure is formed by the interconnection of silicon-oxygen tetrahedra, where each tetrahedron shares all four of its oxygen atoms with neighboring tetrahedra. This unique arrangement gives framework silicates their strength and stability, making them important components in many geological formations.
Common examples of framework silicates include quartz and feldspar. These minerals are prevalent in the Earth's crust and play a crucial role in the formation of igneous, metamorphic, and sedimentary rocks. Their properties make them valuable in various industrial applications, including glass and ceramics production.