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Even more visibly, the relatively small portion of very highly purified silicon used in semiconductor electronics ( However, various sea sponges and microorganisms, such as diatoms and radiolaria, secrete skeletal structures made of silica.Silica is deposited in many plant tissues, such as in the bark and wood of Chrysobalanaceae and the silica cells and silicified trichomes of Cannabis sativa, horsetails and many grasses.The middle of the 20th century saw the development of the chemistry and industrial use of siloxanes and the growing use of silicone polymers, elastomers, and resins.
Most silicon is used commercially without being separated, and often with little processing of the natural minerals.
Such use includes industrial construction with clays, silica sand, and stone.
Silicates are used in Portland cement for mortar and stucco, and mixed with silica sand and gravel to make concrete for walkways, foundations, and roads.
He retained part of Davy's name but added "-on" because he believed that silicon was a nonmetal similar to boron and carbon.
In 1823, Jöns Jacob Berzelius prepared amorphous silicon using approximately the same method as Gay-Lussac (reducing potassium fluorosilicate with molten potassium metal), but purifying the product to a brown powder by repeatedly washing it.
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Silicon is the eighth most common element in the universe by mass, but very rarely occurs as the pure element in the Earth's crust.