data_global _chemical_name_mineral 'Hexaferrum' loop_ _publ_author_name 'Dubrovinsky L S' 'Lazor P' 'Saxena S K' 'Haggkvist P' 'Weber H P' 'Le Bihan T' 'Hausermann D' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 26 _journal_year 1999 _journal_page_first 539 _journal_page_last 545 _publ_section_title ; Study of laser heated iron using third generation synchrotron X-ray radiation facility with imaging plate at high pressures Sample: epsilon iron phase: P = 61 GPa, T = 300 K ; _database_code_amcsd 0008238 _chemical_formula_sum 'Fe' _cell_length_a 2.347 _cell_length_b 2.347 _cell_length_c 3.797 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 18.113 _exptl_crystal_density_diffrn 10.240 _symmetry_space_group_name_H-M 'P 63/m m c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' '-y,-x,z' 'y,x,-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x,x-y,z' '-x,-x+y,-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,1/2-z' 'y,-x+y,1/2+z' '-x+y,y,z' 'x-y,-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Fe 0.33333 0.66667 0.25000