Crystal chemistry of Ca-bearing majorite

R. M. Hazen, Robert T Downs, L. W. Finger, P. G. Conrad, T. Gasparik

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Single crystals of Ca-bearing majorite have been synthesized at 18.2 GPa and 2050°C. This sample is the first silicate garnet to display ordering on both octahedral and dodecahedral sites - behavior that may increase the compositional flexibility of garnet, affect element partitioning at high pressure, and stabilize the garnet structure in the transition zone and upper portion of the lower mantle. The garnet is tetragonal, and like MgSiO3 majorite, displays twinning by twofold rotation about [110]. -from Authors

Original languageEnglish (US)
Pages (from-to)581-584
Number of pages4
JournalAmerican Mineralogist
Volume79
Issue number5-6
StatePublished - 1994
Externally publishedYes

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Bearings (structural)
majorite
Crystal chemistry
crystal chemistry
Garnets
garnets
garnet
chemistry
crystals
Silicates
twinning
Twinning
lower mantle
transition zone
silicates
flexibility
Earth mantle
partitioning
silicate
Display devices

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Hazen, R. M., Downs, R. T., Finger, L. W., Conrad, P. G., & Gasparik, T. (1994). Crystal chemistry of Ca-bearing majorite. American Mineralogist, 79(5-6), 581-584.

Crystal chemistry of Ca-bearing majorite. / Hazen, R. M.; Downs, Robert T; Finger, L. W.; Conrad, P. G.; Gasparik, T.

In: American Mineralogist, Vol. 79, No. 5-6, 1994, p. 581-584.

Research output: Contribution to journalArticle

Hazen, RM, Downs, RT, Finger, LW, Conrad, PG & Gasparik, T 1994, 'Crystal chemistry of Ca-bearing majorite', American Mineralogist, vol. 79, no. 5-6, pp. 581-584.
Hazen RM, Downs RT, Finger LW, Conrad PG, Gasparik T. Crystal chemistry of Ca-bearing majorite. American Mineralogist. 1994;79(5-6):581-584.
Hazen, R. M. ; Downs, Robert T ; Finger, L. W. ; Conrad, P. G. ; Gasparik, T. / Crystal chemistry of Ca-bearing majorite. In: American Mineralogist. 1994 ; Vol. 79, No. 5-6. pp. 581-584.
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