data_global _chemical_name_mineral 'Indialite' loop_ _publ_author_name 'Schwartz K B' 'Leong D B' 'McConville R L' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 20 _journal_year 1994 _journal_page_first 563 _journal_page_last 574 _publ_section_title ; Structural chemistry of synthetic cordierite: evidence for solid solutions and disordered compositional domains in Bi-flux-grown Mg-cordierites Sample: Synthesized in 2 at% bismuth oxide flux at 1000 C for 12 hours Note: tetrahedral site occupancies are assumed, not refined ; _database_code_amcsd 0007855 _chemical_formula_sum 'Mg2 (Al4 Si5) O18 Bi.168' _cell_length_a 9.7850 _cell_length_b 9.7850 _cell_length_c 9.3495 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 775.248 _exptl_crystal_density_diffrn 2.656 _symmetry_space_group_name_H-M 'P 6/m c c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,-z' 'x-y,x,z' '-y,-x,1/2+z' 'y,x,1/2-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,-z' '-x,-y,z' 'x,x-y,1/2+z' '-x,-x+y,1/2-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,-z' 'y,-x+y,z' '-x+y,y,1/2+z' 'x-y,-y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv MgM 0.33333 0.66667 0.25000 1.00000 0.01267 AlT1 0.50000 0.50000 0.25000 0.66667 0.02026 SiT1 0.50000 0.50000 0.25000 0.33333 0.02026 AlT2 0.37170 0.26610 0.00000 0.33333 0.00887 SiT2 0.37170 0.26610 0.00000 0.66667 0.00887 O1 0.48555 0.34965 0.14431 1.00000 0.01393 O2 0.23030 0.30860 0.00000 1.00000 0.03166 BiC1 0.00000 0.00000 0.25000 0.10700 0.40528 BiC2 0.00000 0.00000 0.00000 0.06100 0.21531