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What materials make up the earth crust?

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The crust is the outer layer of the earth - from the mantle up to the surface. The crust of the ocean (floor of the ocean) is mostly basaltic lava. The oceanic crust is about three to five miles (five to eight (?) kilometers) thick. read more

Earth's mantle, is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals.Crust is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium and generally is called as SIMA( silica and magnesium ). read more

The earth's crust has four main components, which are referred to as Earth's materials. These materials include minerals, rocks, soil and water. It is the combination of these materials that makes life on Earth possible. Minerals. Let's start with minerals and look at them in more depth. read more

A mineral is a naturally occurring solid with a structure and definite chemical composition. Although similar to rocks, minerals are the building blocks for making rocks, and are found in various types of rock in differing shapes and chemical compositions throughout the Earth's crust. read more

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