FI9800162 POSIVA 98-1 1 Sorption of cesium on Olkiluoto mica gneiss, granodiorite and granite Tuula Huitti, Martti Hakanen Laboratory of Radiochemistry Department of Chemistry University of Helsinki Antero Lindberg Geological Survey of Finland 29-46 September 1998 POSIVA OY Mikonkatu 15 A. FIN-OO1OO HELSINKI, FINLAND Phone (09) 2280 30 (nat.). ( + 358-9-) 2280 30 (int.) Fax (O9) 2280 3719 (nat.), ( + 358-9-) 2280 3719 (int.)