data_global _chemical_name_mineral 'Orthoclase' loop_ _publ_author_name 'Tseng H-Y' 'Heaney P J' 'Onstott T C' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 22 _journal_year 1995 _journal_page_first 399 _journal_page_last 405 _publ_section_title ; Characterization of lattice strain induced by neutron irradiation Sample: neutron dose = 1.26*10^19 n/cm2 ; _database_code_amcsd 0007930 _chemical_formula_sum 'K Al Si3 O8' _cell_length_a 8.59046 _cell_length_b 12.99323 _cell_length_c 7.18763 _cell_angle_alpha 90 _cell_angle_beta 115.990 _cell_angle_gamma 90 _cell_volume 721.135 _exptl_crystal_density_diffrn 2.564 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv K 0.28350 0.00000 0.13640 1.00000 0.00600 Al1 0.01040 0.18460 0.22410 0.50000 0.00200 Si1 0.01040 0.18460 0.22410 0.50000 0.00200 Si2 0.70930 0.11900 0.34110 1.00000 0.00200 OA1 0.00000 0.14810 0.00000 1.00000 0.01200 OA2 0.63160 0.00000 0.27390 1.00000 0.01200 OB 0.83110 0.14660 0.23200 1.00000 0.01200 OC 0.03550 0.31200 0.25710 1.00000 0.01200 OD 0.18380 0.12240 0.40990 1.00000 0.01200