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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. It is most widely distributed in dusts, sands, planetoids, and planets as various forms of silicon dioxide (silica) or silicates.
The best semiconductors for industry can be treated with a wide variety of âdopantsâ to finely adjust their resistance, as needed. A pure silicon crystal, called an ingot. Silicon isnât the only semiconducting substance on Earth â itâs not even the best semiconductor on Earth. What it is, is by far the most abundant semiconductor on Earth. Silicon is readily available, all over the world; you donât need to import it from special African mines, or do months of expensive and polluting treatment just to get some.