Crystal chemistry of lead aluminosilicate hollandite: a new high- pressure synthetic phase with octahedral Si

R. T. Downs, R. M. Hazen, L. W. Finger, T. Gaspasik

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

Single crystals of lead aluminosilicate hollandite, with composition Pb0.8Al1.6Si2.4O8, have been synthesized at 16.5 GPa and 1450°C. Crystals are tetragonal [space group I4, Z = 2, a = 9.414(3), c = 2.750(3) Å, V = 243.7(3) Å3]. Si and Al are disordered on the octahedral site. Pb is best modeled by two atom sites, one on the fourfold axis and the other split, lying off the fourfold axis. -from Authors

Original languageEnglish (US)
Pages (from-to)937-940
Number of pages4
JournalAmerican Mineralogist
Volume80
Issue number9-10
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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