data_global _chemical_name_mineral 'Bikitaite' loop_ _publ_author_name 'Ferro O' 'Quartieri S' 'Vezzalini G' 'Ceriani C' 'Fois E' 'Gamba A' 'Cruciani G' _journal_name_full 'American Mineralogist' _journal_volume 89 _journal_year 2004 _journal_page_first 94 _journal_page_last 101 _publ_section_title ; Dehydration dynamics of bikitaite: I. In situ synchrotron powder X-ray diffraction study Sample: T = 468 C ; _database_code_amcsd 0003191 _chemical_compound_source 'Bikita, Zimbabwe' _chemical_formula_sum 'Li Al Si2 O6' _cell_length_a 8.6274 _cell_length_b 4.9898 _cell_length_c 7.5729 _cell_angle_alpha 89.737 _cell_angle_beta 114.072 _cell_angle_gamma 90.169 _cell_volume 297.651 _exptl_crystal_density_diffrn 2.076 _symmetry_space_group_name_H-M 'P 1' loop_ _space_group_symop_operation_xyz '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 Li1 0.32000 0.35200 0.16700 0.09119 Li2 0.71800 0.85900 0.91100 0.09119 Al13 0.37700 0.87400 0.93100 0.05193 Al21 0.89100 0.35700 0.89500 0.05193 Si11 0.10500 0.86600 0.09000 0.05699 Si12 0.10380 0.80060 0.50490 0.05699 Si22 0.88600 0.31300 0.49400 0.05699 Si23 0.61800 0.36700 0.06800 0.05699 O11 0.26400 0.72700 0.05500 0.05446 O12 0.08300 0.19100 0.03900 0.05446 O13 0.13500 0.80800 0.31000 0.06333 O14 0.04400 0.52000 0.55900 0.06333 O15 0.26700 0.91400 0.68700 0.06333 O16 0.44500 0.19000 0.01800 0.05446 O21 0.73800 0.24600 0.97200 0.05826 O22 0.93800 0.68400 0.97200 0.05826 O23 0.79500 0.32600 0.64400 0.06333 O24 0.95400 0.01200 0.47900 0.06333 O25 0.72100 0.38000 0.29900 0.06333 O26 0.55900 0.67300 0.99700 0.05826