data_global _chemical_name_mineral 'Nambulite' loop_ _publ_author_name 'Narita H' 'Koto K' 'Morimoto N' 'Yoshii M' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 31 _journal_year 1975 _journal_page_first 2422 _journal_page_last 2426 _publ_section_title ; The crystal structure of nambulite (Li,Na)Mn4Si5O14(OH) ; _database_code_amcsd 0009545 _chemical_formula_sum '(Li.55 Na.45) Mn4 Si5 O15' _cell_length_a 7.621 _cell_length_b 11.761 _cell_length_c 6.731 _cell_angle_alpha 92.767 _cell_angle_beta 95.083 _cell_angle_gamma 106.867 _cell_volume 573.345 _exptl_crystal_density_diffrn 3.559 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz '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 LiM5 0.67510 0.14320 0.36810 0.55000 0.01469 NaM5 0.67510 0.14320 0.36810 0.45000 0.01469 MnM1 0.59120 0.65140 0.06310 1.00000 0.00329 MnM2 0.81030 0.94170 0.12580 1.00000 0.00355 MnM3 0.04070 0.23540 0.17590 1.00000 0.00621 MnM4 0.24330 0.51430 0.26450 1.00000 0.00963 Si1 0.27200 0.05990 0.35920 1.00000 0.01153 Si2 0.46980 0.32910 0.42750 1.00000 0.01165 Si3 0.81520 0.45390 0.22020 1.00000 0.01102 Si4 0.00080 0.72440 0.30340 1.00000 0.01039 Si5 0.34540 0.85450 0.12030 1.00000 0.01191 O1 0.18800 0.00740 0.55950 1.00000 0.01735 O2 0.11940 0.06990 0.18450 1.00000 0.01203 O3 0.42540 0.18470 0.42570 1.00000 0.01963 O4 0.32760 0.35210 0.25170 1.00000 0.01418 O5 0.53790 0.61230 0.35420 1.00000 0.01507 O6 0.68780 0.37570 0.38060 1.00000 0.01393 O7 0.97670 0.39730 0.17360 1.00000 0.01722 O8 0.68120 0.46950 0.03410 1.00000 0.01305 O9 0.92460 0.58320 0.33990 1.00000 0.01482 O10 0.87580 0.76580 0.13250 1.00000 0.01355 O11 -0.01380 0.20420 0.48300 1.00000 0.01621 O12 0.21090 0.74510 0.23570 1.00000 0.01722 O13 0.53130 0.82340 0.07760 1.00000 0.01406 O14 0.76750 0.11960 0.07480 1.00000 0.01456 O15 0.39350 0.97290 0.28110 1.00000 0.01355