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A group of minerals containing various amounts of the elements Silicon and Oxygen. The Silicates are the largest group of minerals. The construction component of all Silicates is the tetrahedron, which is one Silicon atom equidimensionally placed around four Oxygen atoms.
Ten silicate minerals. Ten minerals that make up 90% of the crust are all silicates because all contain silicon and oxygen. Quartz is pure silicon and oxygen. The rest of the silicate minerals include additional elements in the minerals structure.he Earths crust is the outermost layer of our planet and is less than 1% of the Earth's volume. The crust and the mantle contain different kinds of rocks making them chemically different. The upper mantle rocks are primarily peridotite.