data_global _chemical_name_mineral 'Clinochlore' loop_ _publ_author_name 'Zanazzi P F' 'Montagnoli M' 'Nazzareni S' 'Comodi P' _journal_name_full 'American Mineralogist' _journal_volume 91 _journal_year 2006 _journal_page_first 1871 _journal_page_last 1878 _publ_section_title ; Structural effects of pressure on chlorite: A single-crystal study Sample: P = .0001 GPa ; _database_code_amcsd 0004250 _chemical_compound_source 'Alpe Reguzzolo, Val Malenco, Italy' _chemical_formula_sum '(Mg4.5 Fe.5) Al1.84 Si3.16 O18 H8' _cell_length_a 5.327 _cell_length_b 9.233 _cell_length_c 14.381 _cell_angle_alpha 90.2 _cell_angle_beta 97.2 _cell_angle_gamma 89.97 _cell_volume 701.736 _exptl_crystal_density_diffrn 2.706 _symmetry_space_group_name_H-M 'C -1' loop_ _space_group_symop_operation_xyz '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_U_iso_or_equiv MgM1 0.00000 0.00000 0.00000 0.90000 0.00690 FeM1 0.00000 0.00000 0.00000 0.10000 0.00690 MgM2 0.00090 0.33362 0.00000 0.90000 0.00700 FeM2 0.00090 0.33362 0.00000 0.10000 0.00700 MgM3 -0.00020 0.16677 0.50000 0.90000 0.00730 FeM3 -0.00020 0.16677 0.50000 0.10000 0.00730 AlM4 0.00000 0.50000 0.50000 1.00000 0.00670 Si1 0.23108 0.16723 0.19144 0.79000 0.00690 Al1 0.23108 0.16723 0.19144 0.21000 0.00690 Si2 0.73088 0.00056 0.19143 0.79000 0.00680 Al2 0.73088 0.00056 0.19143 0.21000 0.00680 O1 0.19250 0.16690 0.07681 1.00000 0.00810 O2 0.69230 0.00030 0.07686 1.00000 0.00840 O3 0.21410 0.33390 0.23258 1.00000 0.01570 O4 0.51020 0.09940 0.23276 1.00000 0.01560 O5 0.01030 0.06860 0.23257 1.00000 0.01570 O-h1 0.69130 0.33350 0.07334 1.00000 0.00980 O-h2 0.14650 -0.00030 0.43043 1.00000 0.01550 O-h3 0.14180 0.33450 0.43035 1.00000 0.01570 O-h4 0.64190 0.16510 0.43078 1.00000 0.01440 H1 0.70300 0.33700 0.13200 1.00000 0.05400 H2 0.12200 0.00100 0.37400 1.00000 0.05400 H3 0.12100 0.33400 0.37500 1.00000 0.05400 H4 0.60700 0.15600 0.37700 1.00000 0.05400