Metasilicate

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File:Na2SiO3idealized.png
Idealized structure of sodium metasilicate.

Metasilicates are silicates containing ions of empirical formula SiO2−
3
. Common stoichiometries include MI
2
SiO3 and MIISiO3. Metasilicates can be cyclic, usually the hexamer (SiO3)12−6 or chains (SiO3)n2−.[1]

Common compounds containing metasilicate anion are:

File:Diopside-172005.jpg
Pyroxene (diopside) is a mineral classified as a metasilicate.

References

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