data_global _chemical_name_mineral 'Gageite' loop_ _publ_author_name 'Moore P B' _journal_name_full 'American Mineralogist' _journal_volume 54 _journal_year 1969 _journal_page_first 1005 _journal_page_last 1017 _publ_section_title ; A novel octahedral framework structure: gageite ; _database_code_amcsd 0000192 _chemical_formula_sum 'Mg2.01 Mn4.99 Si2 O15 H10' _cell_length_a 13.79 _cell_length_b 13.68 _cell_length_c 3.279 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 618.574 _exptl_crystal_density_diffrn 3.378 _symmetry_space_group_name_H-M 'P n n m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' 'x,y,-z' '-x,-y,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 Mg1 0.00000 0.00000 0.50000 0.83000 0.00532 Mn1 0.00000 0.00000 0.50000 0.17000 0.00532 Mg2 0.33820 0.38470 0.50000 0.59000 0.01026 Mn2 0.33820 0.38470 0.50000 0.41000 0.01026 Mn3 0.42270 0.15200 0.00000 1.00000 0.01469 Mn4 0.10130 0.44930 0.00000 1.00000 0.01001 Si1 0.21110 0.09740 0.50000 0.50000 0.00405 Si2 0.06840 0.19520 0.00000 0.50000 0.00215 O1 0.50000 0.00000 0.00000 1.00000 0.01925 O-H2 0.33160 0.09400 0.50000 1.00000 0.01988 O-H3 0.34110 0.28600 0.00000 1.00000 0.00950 O-H4 0.49010 0.40290 0.50000 0.50000 0.01900 O-H5 0.35050 0.48950 0.00000 1.00000 0.01608 O-H6 0.18790 0.39040 0.50000 1.00000 0.00975 O-H7 0.01760 0.30600 0.00000 0.50000 0.01621 O8 0.15560 0.17990 0.32300 0.50000 0.00367 O9 0.19280 0.14750 0.02400 0.50000 0.01646