High-pressure framework silicates

Robert M. Hazen, Robert T Downs, Larry W. Finger

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Recent syntheses of high-pressure alkali and alkaline earth silicates reveal a class of framework structures with corner-linked 4- and 6- coordinated silicon. These compounds possess the structural formula (A(4- 2x)/1+B(x)/2+)Si(m)/(VI)(Si(n)/(IV)O(2(m+n)+2)) where x, m, and n specify the amounts of alkaline earth, 6-coordinated silicon, and 4-coordinated silicon, respectively. Appropriate values of m and n yield a range of high- pressure structures, from fully 4-coordinated to fully 6-coordinated silicate frameworks. Recognition of this class of framework silicates leads to predictions of high-pressure structures as weft as room-pressure isomorphs of high-pressure silicates.

Original languageEnglish (US)
Pages (from-to)1769-1771
Number of pages3
JournalScience
Volume272
Issue number5269
StatePublished - Jun 21 1996
Externally publishedYes

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silicates
silicon
rooms
alkalies
synthesis
predictions

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Cite this

Hazen, R. M., Downs, R. T., & Finger, L. W. (1996). High-pressure framework silicates. Science, 272(5269), 1769-1771.

High-pressure framework silicates. / Hazen, Robert M.; Downs, Robert T; Finger, Larry W.

In: Science, Vol. 272, No. 5269, 21.06.1996, p. 1769-1771.

Research output: Contribution to journalArticle

Hazen, RM, Downs, RT & Finger, LW 1996, 'High-pressure framework silicates', Science, vol. 272, no. 5269, pp. 1769-1771.
Hazen RM, Downs RT, Finger LW. High-pressure framework silicates. Science. 1996 Jun 21;272(5269):1769-1771.
Hazen, Robert M. ; Downs, Robert T ; Finger, Larry W. / High-pressure framework silicates. In: Science. 1996 ; Vol. 272, No. 5269. pp. 1769-1771.
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