data_9007672 _chemical_name 'Westerveldite' loop_ _publ_author_name 'Lyman P S' 'Prewitt C T' _journal_name_full "Acta Crystallographica, Section B" _journal_volume 40 _journal_year 1984 _journal_page_first 14 _journal_page_last 20 _publ_section_title ; Room- and high-pressure crystal chemistry of CoAs and FeAs Locality: synthetic Note: anisoB's taken from ICSD Sample: P = 8.3 GPa ; _chemical_formula_sum 'Fe As' _cell_length_a 5.390 _cell_length_b 5.928 _cell_length_c 3.2662 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 104.361 _symmetry_space_group_name_H-M 'P n a m' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,y,1/2-z' '-x,-y,1/2+z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Fe 0.00290 0.19800 0.25000 As 0.19690 0.57460 0.25000