1. CIRIMAT, Université de Toulouse, UMR CNRS/INPT/UPS 5085, ENSIACET, 4 allee Emile Monso, 31030 Toulouse cedex 4, France
2. † Special collection papers can be found online at http://www.minsocam.org/MSA/AmMin/special-collections.html.
3. Université de Limoges, CNRS, SPCTS, UMR 7315, Centre Européen de la Céramique, 12 rue Atlantis, 87068 Limoges cedex, France
4. Peter A. Rock Thermochemistry Laboratory and NEAT ORU, University of California Davis, 1 Shields Avenue, Davis, California 95616, U.S.A.