Question

Feldspars and quartz make up most of Earth's crust. These minerals have something chemical in common. What?​

Answer 1

Silicate Minerals

Silicates are by far the largest mineral group. Feldspar and quartz are the two most common silicate minerals. Both are extremely common rock-forming minerals. The basic building block for all silicate minerals is the silica tetrahedron, which is illustrated in Figure.