1. Editorial

   • Friedrich Seifert

   EditorialNotes Pages: 315 - 315

2. Calorimetric study of high-pressure polymorphs of MnSiO₃

   • Masaki Akaogi
   • Alexandra Navrotsky

   OriginalPaper Pages: 317 - 323

3. A model for the irradiative coloration of smoky feldspar and the inhibiting influence of water

   • Anne M. Hofmeister
   • George R. Rossman

   OriginalPaper Pages: 324 - 332

4. Modulated structures in calcian dolomite: A study by electron microscopy

   • G. Van Tendeloo
   • H. R. Wenk
   • R. Gronsky

   OriginalPaper Pages: 333 - 341

5. Structural studies of imogolite and allophanes by aluminum-27 and silicon-29 nuclear magnetic resonance spectroscopy

   • B. A. Goodman
   • J. D. Russell
   • R. J. Kirkpatrick

   OriginalPaper Pages: 342 - 346

6. Far infrared spectra of hydrous layer silicates

   • B. Velde
   • R. Couty

   OriginalPaper Pages: 347 - 352

7. Deformation mechanisms in experimentally deformed single crystals of pyrrhotite, Fe_1−xS

   • Lutz Kübler

   OriginalPaper Pages: 353 - 362

8. Interstitial Sn²⁺ in synthetic and natural cassiterite crystals

   • Alvin J. Cohen
   • Jacob I. D. Adekeye
   • Deborah P. Partlow

   OriginalPaper Pages: 363 - 369

9. Magnetic properties of sheet silicates; 2:1:1 layer minerals

   • O. Ballet
   • J. M. D. Coey
   • K. J. Burke

   OriginalPaper Pages: 370 - 378