data_global _chemical_name_mineral 'Lizardite-1T' loop_ _publ_author_name 'Guggenheim S' 'Zhan W' _journal_name_full 'The Canadian Mineralogist' _journal_volume 36 _journal_year 1998 _journal_page_first 1587 _journal_page_last 1594 _publ_section_title ; Effect of temperature on the structures of lizardite-1T and lizardite-2H1 Sample: T = 20 C ; _database_code_amcsd 0005583 _chemical_formula_sum 'Mg3 Si2 H4 O9' _cell_length_a 5.326 _cell_length_b 5.326 _cell_length_c 7.288 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 179.036 _exptl_crystal_density_diffrn 2.570 _symmetry_space_group_name_H-M 'P 3 1 m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x-y,-y,z' '-y,x-y,z' 'y,x,z' '-x+y,-x,z' '-x,-x+y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Mg 0.33180 0.00000 0.45500 Si 0.33333 0.66667 0.07400 H1 0.58300 0.00000 0.73200 H2 0.00000 0.00000 0.19700 O1 0.33333 0.66667 0.29110 O2 0.50700 0.00000 -0.00800 O3 0.66400 0.00000 0.58800 O4 0.00000 0.00000 0.30400 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Mg 0.00300 0.00300 0.02200 0.00150 -0.00200 0.00000 Si 0.00650 0.00650 0.02600 0.00325 0.00000 0.00000 O1 0.00300 0.00300 0.03600 0.00150 0.00000 0.00000 O2 0.01400 0.00700 0.02100 0.00350 -0.00200 0.00000 O3 0.00900 0.00800 0.02200 0.00400 -0.00200 0.00000 O4 0.00800 0.00800 0.01300 0.00400 0.00000 0.00000