data_global _chemical_name_mineral 'Alarsite' loop_ _publ_author_name 'Sowa H' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 194 _journal_year 1991 _journal_page_first 291 _journal_page_last 304 _publ_section_title ; The crystal structure of AlAsO4 at high pressure Note: P = 4.87 GPa ; _database_code_amcsd 0011004 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Al As O4' _cell_length_a 4.799 _cell_length_b 4.799 _cell_length_c 11.003 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 219.454 _exptl_crystal_density_diffrn 3.766 _symmetry_space_group_name_H-M 'P 31 2 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'y,x,-z' '-y,x-y,1/3+z' '-x,-x+y,1/3-z' '-x+y,-x,2/3+z' 'x-y,-y,2/3-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Al 0.44600 0.00000 0.33333 0.00970 As 0.44040 0.00000 0.83333 0.00800 O1 0.39600 0.31700 0.38020 0.01200 O2 0.38900 0.30600 0.87400 0.01010