1. Referee acknowledgement

   Acknowledgments Pages: 725 - 726

2. Phase equilibrium and calorimetric study of the transition of MnTiO₃ from the ilmenite to the lithium niobate structure and implications for the stability field of perovskite

   • Jaidong Ko
   • Nancy E. Brown
   • Tibor Gasparik

   OriginalPaper Pages: 727 - 733

3. Crystal chemistry of a natural schorlomite and Ti-andradites synthesized at different oxygen fugacities

   • A. Kühberger
   • T. Fehr
   • G. Amthauer

   OriginalPaper Pages: 734 - 740

4. Dielectric constants of BeO, MgO, and CaO using the two-terminal method

   • M. A. Subramanian
   • R. D. Shannon
   • M. C. Wintersgill

   OriginalPaper Pages: 741 - 746

5. Dielectric constants of chrysoberyl, spinel, phenacite, and forsterite and the oxide additivity rule

   • R. D. Shannon
   • M. A. Subramanian

   OriginalPaper Pages: 747 - 751

6. The incommensurate-commensurate phase transition in akermanite, Ca₂MgSi₂O₇, observed by in-situ ²⁹Si MAS NMR spectroscopy

   • L. H. Merwin
   • A. Sebald
   • F. Seifert

   OriginalPaper Pages: 752 - 756

7. A study of phase transformation in hedenbergite to 40 GPa at ∼1200° C

   • Young-Ho Kim
   • Li Chung Ming
   • Murli H. Manghnani

   OriginalPaper Pages: 757 - 762

8. Magic angle spinning NMR observation of sodium site exchange in nepheline at 500° C

   • Jonathan F. Stebbins
   • Ian Farnan
   • Jacques Roux

   OriginalPaper Pages: 763 - 766

9. Characterization of an ESR geochronological dating center in flints

   • Ervan G. Garrison

   OriginalPaper Pages: 767 - 773

10. X-Ray radial distribution function analysis of acid volcanic glasses from the Eastern Rhodopes, Bulgaria

    • N. Zotov
    • V. Dimitrov
    • Y. Yanev

    OriginalPaper Pages: 774 - 782

11. Geobarothermometric properties of growth twins and mathematical analysis of quartz data for a broad range of temperatures and pressures

    • G. Zanzotto

    OriginalPaper Pages: 783 - 789

12. X-ray diffraction study of the orientational order/disorder transition in NaNO₃: Evidence for order parameter coupling

    • Wolfgang Wilhelm Schmahl
    • Ekhard Salje

    OriginalPaper Pages: 790 - 798

13. Transition enthalpies and entropies of high pressure zinc metasilicates and zinc metagermanates

    • Kurt Leinenweber
    • Alexandra Navrotsky
    • Eiji Ito

    OriginalPaper Pages: 799 - 808

14. ³¹P and ²⁷Al solid-state nuclear magnetic resonance study of taranakite

    • William F. Bleam
    • Philip E. Pfeffer
    • James S. Frye

    OriginalPaper Pages: 809 - 816

15. ²⁷Al Solid-state nuclear magnetic resonance study of five-coordinate aluminum in augelite and senegalite

    • William F. Bleam
    • Stephen F. Dec
    • James S. Frye

    OriginalPaper Pages: 817 - 820