Home A high-pressure Raman spectroscopic study of hafnon, HfSiO4
Article
Licensed
Unlicensed Requires Authentication

A high-pressure Raman spectroscopic study of hafnon, HfSiO4

  • Bouchaib Manoun EMAIL logo , Robert T. Downs and Surendra K. Saxena
Published/Copyright: March 31, 2015
Become an author with De Gruyter Brill

Abstract

Raman spectra of synthetic HfSiO4 were determined to pressures of 38.2 GPa. Changes in the spectra indicate that HfSiO4 undergoes a room-temperature phase transition from the hafnon structure (I41/amd space group) to the scheelite structure (I41/a space group) at a pressure of ~19.6 GPa. Upon release of pressure to ambient conditions, the spectra indicate that the sample retains the scheelite structure. Zircon has been classified previously as the least compressible tetrahedrally coordinated silicate known. However, pressure derivatives of the peak positions in hafnon are smaller than those in zircon, and suggest that hafnon is more incompressible than zircon. Furthermore, the pressure derivatives also suggest that the high-pressure, scheelite-structured HfSiO4 phase is more incompressible than the scheelite-structured ZrSiO4 (reidite). Thus, the post-hafnon phase appears to be even more incompressible than hafnon, which would make it the least compressible tetrahedrally coordinated silicate known to date.

Received: 2005-8-24
Accepted: 2006-5-2
Published Online: 2015-3-31
Published in Print: 2006-11-1

© 2015 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Presidential Address to the Mineralogical Society of America, Salt Lake City, October 18, 2005: Mineral surfaces and the prebiotic selection and organization of biomolecules
  2. A rare garnet-tourmaline-sillimanite-biotite-ilmenite-quartz assemblage from the granulite-facies region of south-central Massachusetts
  3. Effects of natural radiation damage on back-scattered electron images of single crystals of minerals
  4. Thermal diffusivity of olivine-group minerals at high temperature
  5. Quantum mechanical vs. empirical potential modeling of uranium dioxide (UO2) surfaces: (111), (110), and (100)
  6. AXANES study of Cu speciation in high-temperature brines using synthetic fluid inclusions
  7. A new approach to determine and quantify structural units in silicate glasses using micro-reflectance Fourier-Transform infrared spectroscopy
  8. Titanium incorporation and VITi3+ -IVTi4+ charge transfer in synthetic diopside
  9. Hugoniot and impact-induced phase transition of magnesite
  10. Finite element modeling of elastic volume changes in fluid inclusions: Comparison with experiment
  11. Thermodynamics of mixing in pyrope-grossular, Mg3Al2Si3O12-Ca3Al2Si3O12, solid solution from lattice dynamics calculations and Monte Carlo simulations
  12. Does antigorite really contain 4- and 8-membered rings of tetrahedra?
  13. New insight into crystal chemistry of topaz: A multi-methodological study
  14. Tetrahedrally coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic studies
  15. Recovery of stishovite-structure at ambient conditions out of shock-generated amorphous silica
  16. New experimental data on biotite + magnetite + sanidine saturated phonolitic melts and application to the estimation of magmatic water fugacity
  17. Structural effects of pressure on triclinic chlorite: A single-crystal study
  18. New high-pressure phase relations in CaSnO3
  19. A high-pressure Raman spectroscopic study of hafnon, HfSiO4
  20. Single-crystal elasticity of brucite, Mg(OH)2, to 15 GPa by Brillouin scattering
  21. The effect of composition on Cr2+/Cr3+ in silicate melts
  22. Phosphohedyphane, Ca2Pb3(PO4)3Cl, the phosphate analog of hedyphane: Description and crystal structure
  23. Synthesis of novel lead–molybdenum and lead–tungsten oxyhalides with the pinalite structure, Pb3MoO5Cl2 and Pb3WO5Br2
  24. Depolymerization effect of water in aluminosilicate glasses: Direct evidence from 1H-27Al heteronuclear correlation NMR
  25. Hydroxylellestadite from Cioclovina Cave (Romania): Microanalytical, structural, and vibrational spectroscopy data
  26. Matioliite, the Mg-analog of burangaite, from Gentil mine, Mendes Pimentel, Minas Gerais, Brazil, and other occurrences
  27. Letter. Crystallographic alignments in a coccolith (Pleurochrysis carterae) revealed by electron back-scattered diffraction (EBSD)
  28. Letter. High-pressure study of FeS, between 20 and 120 GPa, using synchrotron X-ray powder diffraction
Downloaded on 13.9.2025 from https://www.degruyterbrill.com/document/doi/10.2138/am.2006.2070/html
Scroll to top button