what are the minerals that make the crust
Sophia is correct
one among the mineral is iron
The silicate class of minerals makes up 90 percent of the Earth’s crust, and is compounds of silicon and other chemical elements. The two most common silicate types found in the Earth’s crust are quartz and feldspar minerals. Quartz, also called silicon dioxide, contains silicon and oxygen and has types that are both clear and colored, such as rock crystal, amethyst and citrine. Feldspar minerals, such as albite and oligoclase, often contain aluminum, calcium and sodium as well as silicon. Lesser concentrations of silicates include mica and olivine.