data_global _chemical_name_mineral 'Katoite' loop_ _publ_author_name 'Lager G A' 'Marshall W G' 'Liu Z' 'Downs R T' _journal_name_full 'American Mineralogist' _journal_volume 90 _journal_year 2005 _journal_page_first 639 _journal_page_last 644 _publ_section_title ; Re-examination of the hydrogarnet structure at high pressure using neutron powder diffraction and infrared spectroscopy Sample: P = 0.08 GPa ; _database_code_amcsd 0003740 _chemical_formula_sum 'Ca3 Al2 O12 D12' _cell_length_a 12.5670 _cell_length_b 12.5670 _cell_length_c 12.5670 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1984.700 _exptl_crystal_density_diffrn 2.613 _symmetry_space_group_name_H-M 'I a 3 d' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' 'z,1/2-x,1/2+y' '1/2+z,-x,+y' '-y,1/2+z,1/2-x' '1/2-y,+z,-x' 'x,1/2-y,1/2+z' '1/2+x,-y,+z' '-z,1/2+x,1/2-y' '1/2-z,+x,-y' 'y,1/2-z,1/2+x' '1/2+y,-z,+x' '-x,1/2+y,1/2-z' '1/2-x,+y,-z' '3/4+x,1/4-z,3/4-y' '1/4+x,3/4-z,1/4-y' '3/4-z,1/4+y,3/4+x' '1/4-z,3/4+y,1/4+x' '3/4+y,1/4-x,3/4-z' '1/4+y,3/4-x,1/4-z' '3/4-x,1/4+z,3/4+y' '1/4-x,3/4+z,1/4+y' '3/4+z,1/4-y,3/4-x' '1/4+z,3/4-y,1/4-x' '3/4-y,1/4+x,3/4+z' '1/4-y,3/4+x,1/4+z' '1/4+x,1/4+z,1/4+y' '3/4+x,3/4+z,3/4+y' '1/4-z,1/4-y,1/4-x' '3/4-z,3/4-y,3/4-x' '1/4+y,1/4+x,1/4+z' '3/4+y,3/4+x,3/4+z' '1/4-x,1/4-z,1/4-y' '3/4-x,3/4-z,3/4-y' '1/4+z,1/4+y,1/4+x' '3/4+z,3/4+y,3/4+x' '1/4-y,1/4-x,1/4-z' '3/4-y,3/4-x,3/4-z' '1/2+z,x,1/2-y' '+z,1/2+x,-y' '1/2-y,-z,1/2+x' '-y,1/2-z,+x' '1/2+x,y,1/2-z' '+x,1/2+y,-z' '1/2-z,-x,1/2+y' '-z,1/2-x,+y' '1/2+y,z,1/2-x' '+y,1/2+z,-x' '1/2-x,-y,1/2+z' '-x,1/2-y,+z' '1/2-z,1/2+x,y' '-z,+x,1/2+y' '1/2+y,1/2-z,-x' '+y,-z,1/2-x' '1/2-x,1/2+y,z' '-x,+y,1/2+z' '1/2+z,1/2-x,-y' '+z,-x,1/2-y' '1/2-y,1/2+z,x' '-y,+z,1/2+x' '1/2+x,1/2-y,-z' '+x,-y,1/2-z' '3/4-x,3/4+z,1/4-y' '1/4-x,1/4+z,3/4-y' '3/4+z,3/4-y,1/4+x' '1/4+z,1/4-y,3/4+x' '3/4-y,3/4+x,1/4-z' '1/4-y,1/4+x,3/4-z' '3/4+x,3/4-z,1/4+y' '1/4+x,1/4-z,3/4+y' '3/4-z,3/4+y,1/4-x' '1/4-z,1/4+y,3/4-x' '3/4+y,3/4-x,1/4+z' '1/4+y,1/4-x,3/4+z' '1/4-x,3/4-z,3/4+y' '3/4-x,1/4-z,1/4+y' '1/4+z,3/4+y,3/4-x' '3/4+z,1/4+y,1/4-x' '1/4-y,3/4-x,3/4+z' '3/4-y,1/4-x,1/4+z' '1/4+x,3/4+z,3/4-y' '3/4+x,1/4+z,1/4-y' '1/4-z,3/4-y,3/4+x' '3/4-z,1/4-y,1/4+x' '1/4+y,3/4+x,3/4-z' '3/4+y,1/4+x,1/4-z' '-z,-x,-y' '1/2-z,1/2-x,1/2-y' 'y,z,x' '1/2+y,1/2+z,1/2+x' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' 'z,x,y' '1/2+z,1/2+x,1/2+y' '-y,-z,-x' '1/2-y,1/2-z,1/2-x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ca 0.12500 0.00000 0.25000 0.01700 Al 0.00000 0.00000 0.50000 0.00900 O 0.02870 0.05210 0.64210 0.01800 D 0.15320 0.09080 0.79770 0.05900 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 D 0.02100 0.05100 0.10500 -0.00400 -0.01500 0.02000