data_global _chemical_name_mineral 'Albite-Ge' loop_ _publ_author_name 'Kroll H' 'Flogel J' 'Breit U' 'Lons J' 'Pentinghaus H' _journal_name_full 'European Journal of Mineralogy' _journal_volume 3 _journal_year 1991 _journal_page_first 739 _journal_page_last 749 _publ_section_title ; Order and anti-order in Ge-substituted alkali feldspars Sample: Na[AlSiGe2O8] synthesized at 600 deg C ; _database_code_amcsd 0006423 _chemical_formula_sum 'Na (Al Si Ge2) O8' _cell_length_a 8.3258 _cell_length_b 13.1590 _cell_length_c 7.2734 _cell_angle_alpha 94.172 _cell_angle_beta 116.306 _cell_angle_gamma 90.693 _cell_volume 711.575 _exptl_crystal_density_diffrn 3.279 _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_occupancy _atom_site_U_iso_or_equiv Na0 0.27310 0.01540 0.12470 0.20000 0.08980 Na1 0.27460 -0.02590 0.17770 0.20000 0.02470 Na2 0.28870 0.04070 0.10000 0.20000 0.01216 Na3 0.27060 0.02750 0.10560 0.20000 0.01089 Na4 0.26220 0.00170 0.13850 0.20000 0.01203 AlT10 0.00923 0.16045 0.21214 0.27000 0.01013 SiT10 0.00923 0.16045 0.21214 0.19000 0.01013 GeT10 0.00923 0.16045 0.21214 0.54000 0.01013 AlT1m 0.00296 0.81312 0.23009 0.29000 0.00988 SiT1m 0.00296 0.81312 0.23009 0.34000 0.00988 GeT1m 0.00296 0.81312 0.23009 0.37200 0.00988 AlT20 0.68842 0.10611 0.31510 0.21000 0.01026 SiT20 0.68842 0.10611 0.31510 0.26000 0.01026 GeT20 0.68842 0.10611 0.31510 0.53200 0.01026 AlT2m 0.67885 0.87556 0.35525 0.23000 0.01013 SiT2m 0.67885 0.87556 0.35525 0.21000 0.01013 GeT2m 0.67885 0.87556 0.35525 0.55600 0.01013 OA1 0.00730 0.12980 0.97920 1.00000 0.02102 OA2 0.58070 0.98870 0.27350 1.00000 0.01659 OB0 0.81850 0.09700 0.18770 1.00000 0.02229 OBm 0.81160 0.84070 0.24440 1.00000 0.03052 OC0 0.00570 0.28670 0.28300 1.00000 0.01824 OCm 0.01820 0.68390 0.20490 1.00000 0.02077 OD0 0.20110 0.10770 0.38100 1.00000 0.01950 ODm 0.18920 0.86600 0.43140 1.00000 0.02596