Silicates are minerals that contain silicon and oxygen, the two most abundant elements in the Earth's crust. They are the largest group of minerals, making up about 90% of the Earth's surface. Silicates can be found in various forms, including quartz, feldspar, and mica, and they play a crucial role in the formation of rocks. These minerals are classified into different groups based on their structures, such as nesosilicates, sorosilicates, and phyllosilicates. Silicates are essential in many industries, including construction and electronics, due to their durability and abundance.