data_global _chemical_name_mineral 'Roweite' loop_ _publ_author_name 'Moore P B' 'Araki T' _journal_name_full 'American Mineralogist' _journal_volume 59 _journal_year 1974 _journal_page_first 60 _journal_page_last 65 _publ_section_title ; Roweite, Ca2Mn2(OH)4[B4O7(OH)2]: Its atomic arrangement ; _database_code_amcsd 0000393 _chemical_formula_sum 'Ca2 Mn2 B4 (O13 H6)' _cell_length_a 9.057 _cell_length_b 13.357 _cell_length_c 8.289 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1002.756 _exptl_crystal_density_diffrn 2.963 _symmetry_space_group_name_H-M 'P b a m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-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_U_iso_or_equiv Ca 0.23330 0.13170 0.24450 0.01102 Mn1 0.00000 0.00000 0.00000 0.01305 Mn2 0.50000 0.00000 0.00000 0.01646 Mn3 0.48030 0.24680 0.00000 0.01317 B1 0.20970 0.30030 0.50000 0.01444 B2 0.23310 0.47530 0.50000 0.00722 B3 0.37170 0.37930 0.29290 0.00937 O-H1 0.11430 0.20910 0.50000 0.01760 O-H2 0.16110 0.57190 0.50000 0.01102 O3 0.12870 0.39110 0.50000 0.00861 O4 0.30920 0.29240 0.35500 0.01684 O5 0.32870 0.46950 0.35330 0.01469 O6 0.47240 0.37400 0.16950 0.01102 O-H7 0.23830 0.02150 0.00000 0.01343 O-H8 0.22900 0.23730 0.00000 0.01583 O-H9 0.48620 0.12290 0.16420 0.01444