Silicon And silicon carbide are useful in electronics because They can be semiconductors: They will switch between remaining electrical conductors, as metals are, and insulators, as most plastics are. Silicon carbide is present during the mineral moissanite but is uncommon in nature. It can be synthesized using the Acheson process, https://crucible-sagger71581.wikiexpression.com/3417078/silicon_carbide_fibre_composite_for_dummies