Information card for entry 9009926

Structure parameters

• Mineral name: Yftisite-(Y)
• Formula: F6 O9 Si2 Ti Y4
• Calculated formula: F6 O9 Si2 Ti Y4
• Title of publication: Crystal-structure of natural yttrium and rare-earth fluorotitano-silicate (Y,Ree)4(F,OH)6TiO[SiO4]2 (yftisite)
• Authors of publication: Balko, V. P.; Bakakin, V. V.
• Journal of publication: Zhurnal Strukturnoi Khimii
• Year of publication: 1975
• Journal volume: 16
• Pages of publication: 837 - 842
• a: 14.949 Å
• b: 10.626 Å
• c: 7.043 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1118.77 ų
• Number of distinct elements: 5
• Space group number: 63
• Hermann-Mauguin space group symbol: C m c m
• Hall space group symbol: -C 2c 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No