XV International Conference on X-Ray Diffraction & Crystal Chemistry of Minerals S t. - P e t e r s b u r g, , 1983 , 1963 , 1989 -, 1974 , 1969, 1986 , 1965 , 1992 , 1995 , 1979 , 1959, 1972 , 1977 -, 1999, 2003 Our Conferences since 1963 Powder Diffraction and Crystal Chemistry-1994 Powder Diffraction-94 Organizers of PD-94 1995 St. Petersburg State University, Chemical Faculty, Peterhoff Crystal Chemistry of Inorganic Compounds Summer School on Crystal Symmetry - 95 XIII Conference On X-ray Diffraction of Minerals dedicated to the memory of V.A. Frank-Kamenetzkiy Belgorod XIV Conference-1999 Dedicated to the 90 th Jubilee of G.B. Bokii St. Petersburg Prof. V.B. Tatarskii I National Conference on organic mineralogy, SPb, 2003 Before opening: R.R. Shuvalov, . Locock, P.C. Burns Opening of XRD 2003 dedicated to 150 Jubilee of E.S. Fedorov Pro-rector of St. Petersburg State University V.N. Troyan Co-chairs of the XRD-2003 16 September 2003 Opening (Plenary Hall) Lecture of Prof. V.S. Urusov Session Chair Prof. P. Paufler Lecture of Prof. P. Burns Prof. P.M Zorkii Prof. S.K. Filatov Students from Notre Dame Uni USA Invited Lecture Prof. S.V. Borisov Petrovskii Hall Students of Cryst. Dept SPb University Dr. A. Levin Hall 44 Sponsors desk Prof. V.N. Troyan, Prof. H. Bradaczek Welcome Boat Trip