> Try this reference - Acta Cryst. (1953) vol. 6, p.613 - or ICSD #24690.
Even this old paper showed that Paracelsium Ba2Al2Si2O8 is monoclinic and only pseudo-orthorhombic. Look at this 1985 paper by Chiari et al for more details. http://www.minsocam.org/ammin/AM70/AM70_969.pdf Actually ICSD http://icsdweb.fiz-karlsruhe.de/ contains 9 references to Ba2Al2Si2O8, with papers as recent as 2003. Saint-Gobain can surely afford to subscribe to ICSD rather than waste time and money working with old or incomplete data. >> I would like to know if someone could help me to find the crystal data >> (*.CIF) of the following phase: BaAl2Si2O8 orthorrombic. >> I have already checked in the most commun links and I found the >> BaAl2Si2O8 monocmonic but that's not enough.... _____________________________________________________________ Dr Alan Hewat, ILL Grenoble, FRANCE <[EMAIL PROTECTED]>fax+33.476.20.76.48 +33.476.20.72.13 (.26 Mme Guillermet) http://www.ill.fr/dif/people/hewat/ _____________________________________________________________
