Dear All, I am presently studying periclase/brucite mixtures, especially for the MgO crystallite size change in the range 600-1400 °C. My literature search gave not very satisfactory results. Could anybody indicate me papers on these topics? Thanks for your attention. Regards Natale Perchiazzi §§§§§§§§§§§§§§§§§§§§§§§§§§§§§ Natale Perchiazzi Dipartimento di Scienze della Terra Universitą degli Studi di Pisa Via S.Maria 53, I-56126 Pisa tel +39 050 847269 fax +39 050 40976 e-mail [EMAIL PROTECTED] §§§§§§§§§§§§§§§§§§§§§§§§§§§§§