AM_Yftisite-(Y) Formula: Y4 Ti Si2 O9 F6 Name: Yftisite-(Y) Unit cell: 14.949 10.626 7.043 90.0 90.0 90.0 , V=1118.77 Space group: CMCM (63)

Balko V P , Bakakin V V , Zhurnal Strukturnoi Khimii , 16 (1975) p.837-842, Crystal-structure of natural yttrium and rare-earth fluorotitano-silicate, (Y,Ree)4(F,OH)6TiO[SiO4]2 (yftisite)