Sodium accounts for around 2.4% of the Earth’s crust. Combining with other minerals to form hard crystals, it can give bones strength and structure. Additionally, calcium element is essential to human growth in relation to bones. Calcium carbonate is also used in steel-making to remove silica impurities. For instance, limestone, whose main component is calcium carbonate, is used directly for buildings and indirectly for cement. It can be found in a variety of rock types including marble, chalk, limestone, shells, and pearls.Ĭompounds of this silvery-white, soft metal are extensively used. Calcium – Bone Growth Factor (4.15%)Ībout 4.2% of the Earth’s crust is calcium. Iron element is also important to organic life. There are many different types of steel, including stainless steel and cast iron. Stainless steel is very resistant to corrosion Cast iron with 3 to 5% carbon is used to make pipes, valves, and pumps. About 1.3 billion tonnes of crude steel are produced from iron annually. It is one of the most used metals in civil engineering and manufacturing.
This shiny, greyish metal has been used by humans for years. Iron is about 5.6% of the Earth’s crust, mostly in the core. Aluminum is used in a variety of products including foils, kitchen utensils, and airplane parts because it has a low density and excellent corrosion resistance and can be easily formed.įurther Reading: Top 10 Properties Of Aluminum And Its Applications 2. It is usually found in compound forms, such as aluminum sulfate and aluminum oxide.Ĭonsumers can find this silvery-white, lightweight malleable metal in households and different industries. It is the most abundant metal element in the crust. Aluminum Everywhere (8.23%)Īluminum takes up 8.2% of the Earth’s crust. Table 1: 7 Most Abundant Metal Elements in the Earth’s Crust Metal Elementħ Most Abundant Metal Elements in Earth’s Crust 1. They are introduced by the percentage of abundance below: A range of elements can be found in the Earth’s crust, among which 7 of the 10 most abundant elements are metallic elements. It is composed of solid rocks and minerals formed, which are usually slowly formed over a long period of time. The crust is the outermost layer of the Earth, making up 1% of the planet.
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