data_global _chemical_name_mineral 'Titanite' loop_ _publ_author_name 'Hollabaugh C L' 'Foit F F' _journal_name_full 'American Mineralogist' _journal_volume 69 _journal_year 1984 _journal_page_first 725 _journal_page_last 732 _publ_section_title ; The crystal structure of an Al-rich titanite from Grisons, Switzerland ; _database_code_amcsd 0000943 _chemical_formula_sum 'Ca Ti Si O5' _cell_length_a 7.050 _cell_length_b 8.681 _cell_length_c 6.539 _cell_angle_alpha 90 _cell_angle_beta 113.9 _cell_angle_gamma 90 _cell_volume 365.879 _exptl_crystal_density_diffrn 3.559 _symmetry_space_group_name_H-M 'P 1 21/a 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ca 0.23270 0.91720 0.75450 0.00557 Ti 0.51490 0.75410 0.24930 0.00405 Si 0.75620 0.93270 0.75700 0.00304 O1 0.74650 0.82130 0.23620 0.00481 O2 0.92090 0.82310 0.93760 0.00735 O3 0.38370 0.96520 0.14210 0.00659 O4 0.90100 0.31090 0.43450 0.00279 O5 0.37980 0.45620 0.65230 0.00443