data_global _chemical_name_mineral 'Albite' loop_ _publ_author_name 'Downs R T' 'Hazen R M' 'Finger L W' _journal_name_full 'American Mineralogist' _journal_volume 79 _journal_year 1994 _journal_page_first 1042 _journal_page_last 1052 _publ_section_title ; The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering P = 0, constrained data set Note: sample is from Crete ; _database_code_amcsd 0001683 _chemical_formula_sum 'Na Al Si3 O8' _cell_length_a 8.1372 _cell_length_b 12.7870 _cell_length_c 7.1574 _cell_angle_alpha 94.245 _cell_angle_beta 116.605 _cell_angle_gamma 87.809 _cell_volume 664.037 _exptl_crystal_density_diffrn 2.623 _symmetry_space_group_name_H-M 'C -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' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Na 0.26913 0.98904 0.14894 0.03800 Al1o 0.00890 0.16819 0.20762 0.00811 Si1m 0.00398 0.82043 0.23665 0.00798 Si2o 0.69222 0.11044 0.31589 0.00747 Si2m 0.68162 0.88179 0.36088 0.00773 O(A1) 0.00615 0.13166 0.96889 0.01482 O(A2) 0.59158 0.99706 0.27896 0.00975 O(B)o 0.81370 0.11011 0.19504 0.01330 O(B)m 0.81898 0.85089 0.25629 0.01507 O(C)o 0.01239 0.30185 0.26901 0.01216 O(C)m 0.02327 0.69340 0.22754 0.01165 O(D)o 0.20643 0.10894 0.38631 0.01507 O(D)m 0.18092 0.86801 0.42864 0.01824 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Na 0.01773 0.05305 0.03721 -0.00484 0.01219 -0.02442