silicon-oxygen tetrahedra

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A anion structure of one silicon bonded to four oxygens, in the shape of a tetrahedron, with the silicon in the center and four oxygens at the corners of the structure. It has a net charge of -4, and can bond to cations to form silicate minerals.

Synonyms:
silica tetrahedra, silica-oxygen tetrahedra
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Author: Chris

Assistant Professor, Salt Lake Community College, Salt Lake City, Utah