1. Determination of the phase boundary between ilmenite and perovskite in MgSiO₃ by in situ X-ray diffraction and quench experiments

   • K. Kuroda
   • T. Irifune
   • W. Utsumi

   ORIGINAL PAPER Pages: 523 - 532

2. Stability of dense hydrous magnesium silicate phases in the systems Mg₂SiO₄-H₂O and MgSiO₃-H₂O at pressures up to 27 GPa

   • E. Ohtani
   • H. Mizobata
   • H. Yurimoto

   ORIGINAL PAPER Pages: 533 - 544

3. A TEM investigation of natural metamict zircons: structure and recovery of amorphous domains

   • G. C. Capitani
   • H. Leroux
   • E. K. H. Salje

   ORIGINAL PAPER Pages: 545 - 556

4. The orientation and vibrational states of H₂O in synthetic alkali-free beryl

   • B. A. Kolesov
   • C. A. Geiger

   ORIGINAL PAPER Pages: 557 - 564

5. Wollastonite polytypes in the CaO-SiO₂ system.

   • E. Mazzucato
   • A. F. Gualtieri

   ORIGINAL PAPER Pages: 565 - 574

6. Structural evolution of rutile-type and CaCl₂-type germanium dioxide at high pressure

   • J. Haines
   • J. M. Léger
   • A. S. Pereira

   ORIGINAL PAPER Pages: 575 - 582

7. Crystal chemistry of perovskite-type compounds in the tausonite-loparite series, (Sr_{1−2 x} Na _x La _x )TiO₃

   • R. H. Mitchell
   • A. R. Chakhmouradian
   • P. M. Woodward

   ORIGINAL PAPER Pages: 583 - 589

8. Modelling the OH stretch envelope shape and temperature effects in infrared spectra of hydrous silica and silicate glasses

   • D. P. Zarubin

   ORIGINAL PAPER Pages: 590 - 597