data_9007147 _chemical_name 'Manganogrunerite' loop_ _publ_author_name 'Reece J J' 'Redfern S A T' 'Welch M D' 'Henderson C M B' 'McCammon C A' _journal_name_full "Physics and Chemistry of Minerals" _journal_volume 29 _journal_year 2002 _journal_page_first 562 _journal_page_last 570 _publ_section_title ; Temperature-dependent Fe-Mn order-disorder behaviour in amphiboles Sample: BM40798, T = 600 C Locality: Langban, Sweden ; _chemical_formula_sum 'Mn1.897 Fe3.938 Mg1.199 Ca.1 Si7.812 H2 O24' _cell_length_a 9.68509 _cell_length_b 18.3886 _cell_length_c 5.34607 _cell_angle_alpha 90 _cell_angle_beta 101.8720 _cell_angle_gamma 90 _cell_volume 931.744 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_Uiso_or_equiv MnM1 0.00000 0.08730 0.50000 0.19900 0.02166 FeM1 0.00000 0.08730 0.50000 0.65800 0.02166 MgM1 0.00000 0.08730 0.50000 0.11600 0.02166 MnM2 0.00000 0.17960 0.00000 0.24800 0.00836 FeM2 0.00000 0.17960 0.00000 0.36200 0.00836 MgM2 0.00000 0.17960 0.00000 0.39000 0.00836 MnM3 0.00000 0.00000 0.00000 0.12900 0.03926 FeM3 0.00000 0.00000 0.00000 0.68400 0.03926 MgM3 0.00000 0.00000 0.00000 0.18700 0.03926 MnM4 0.00000 0.25630 0.50000 0.43700 0.06586 CaM4 0.00000 0.25630 0.50000 0.05000 0.06586 FeM4 0.00000 0.25630 0.50000 0.51300 0.06586 SiT1 0.28200 0.08410 0.26660 0.95300 0.01938 FeT1 0.28200 0.08410 0.26660 0.04700 0.01938 SiT2 0.29990 0.16600 0.78390 1.00000 0.01469 H1 0.19380 0.00000 0.69800 1.00000 0.16845 O1 0.11230 0.08820 0.20970 1.00000 0.02153 O2 0.12420 0.17370 0.70990 1.00000 0.02140 O3 0.11390 0.00000 0.71200 1.00000 0.02305 O4 0.37630 0.24030 0.76630 1.00000 0.02571 O5 0.34620 0.12710 0.05430 1.00000 0.02571 O6 0.34800 0.12100 0.55210 1.00000 0.02888 O7 0.33440 0.00000 0.27090 1.00000 0.02584