Metasilicate

Metasilicates are silicates containing ions of empirical formula SiO2−3.

Common stoichiometries include MI2SiO3 and MIISiO3.

Metasilicates can be cyclic, usually the hexamer (SiO3)12−6 or chains (SiO3)n2−.

[1] Common compounds containing metasilicate anion are: This inorganic compound–related article is a stub.

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Idealized structure of sodium metasilicate.
Pyroxene ( diopside ) is a mineral classified as a metasilicate.