Silicon
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Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre, and is a tetravalent non-metal and semiconductor. It is
Silicon Croda
Jöns Jacob Berzelius discovered silicon in 1823.
Single crystal of silicon grown by the Czochralski process used to make integrated circuits
Olivine
Silicon dioxide
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Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, and is commonly found in nature as quartz. In many parts of the world, silica is the major constituent of
Silicon
…occurs in its pure form in the Earth's crust. It is widely distributed throughout space in cosmic dusts, planetoids, and planets as various forms of silicon dioxide (silica) or silicates. More than 90% of the Earth's crust is composed of silicate minerals, making silicon the second most abundant element in the…
Sample of silicon dioxide
Manufactured fumed silica with maximum surface area of 380 m2/g
Bundle of optical fibres composed of high purity silica
Quartz sand (silica) as main raw material for commercial glass production