data_global _chemical_name_mineral 'Brewsterite-Sr' loop_ _publ_author_name 'Akizuki M' 'Kudoh Y' 'Kuribayashi T' _journal_name_full 'American Mineralogist' _journal_volume 81 _journal_year 1996 _journal_page_first 1501 _journal_page_last 1506 _publ_section_title ; Crystal structures of the {011}, {610}, and {010} growth sectors in brewsterite Sample: {010} sector ; _database_code_amcsd 0001845 _chemical_formula_sum '(Si5.85 Al2.15) Sr.67 Ba.24 K.01 O21 H10' _cell_length_a 6.785 _cell_length_b 17.546 _cell_length_c 7.740 _cell_angle_alpha 89.98 _cell_angle_beta 94.25 _cell_angle_gamma 90.06 _cell_volume 918.910 _exptl_crystal_density_diffrn 2.387 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-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 SiTa 0.31920 0.07970 0.82290 0.65000 0.01748 AlTa 0.31920 0.07970 0.82290 0.35000 0.01748 SiTa* 0.31870 0.42010 0.82300 0.60000 0.01760 AlTa* 0.31870 0.42010 0.82300 0.40000 0.01760 SiTb 0.40930 0.05730 0.21100 0.80000 0.01786 AlTb 0.40930 0.05730 0.21100 0.20000 0.01786 SiTb* 0.40910 0.44250 0.21070 0.80000 0.01773 AlTb* 0.40910 0.44250 0.21070 0.20000 0.01773 SiTc 0.55500 0.15830 0.53350 0.50000 0.01735 AlTc 0.55500 0.15830 0.53350 0.50000 0.01735 SiTc* 0.55390 0.34210 0.53330 0.60000 0.01672 AlTc* 0.55390 0.34210 0.53330 0.40000 0.01672 SiTd 0.90650 0.05270 0.64150 0.95000 0.01760 AlTd 0.90650 0.05270 0.64150 0.05000 0.01760 SiTd* 0.90600 0.44740 0.64170 0.95000 0.01735 AlTd* 0.90600 0.44740 0.64170 0.05000 0.01735 Sr 0.24950 0.24969 0.17696 0.67000 0.01596 Ba 0.24950 0.24969 0.17696 0.24000 0.01596 K 0.24950 0.24969 0.17696 0.01000 0.01596 O1 0.35320 0.10510 0.03100 1.00000 0.02406 O1* 0.35330 0.39450 0.03150 1.00000 0.02406 O2 0.42400 0.12490 0.35620 1.00000 0.03420 O2* 0.42460 0.37530 0.35760 1.00000 0.03293 O3 0.78510 0.12260 0.54790 1.00000 0.02913 O3* 0.78200 0.37800 0.54650 1.00000 0.02786 O4 0.44570 0.14000 0.71300 1.00000 0.03166 O4* 0.44500 0.36040 0.71140 1.00000 0.03166 O5 0.08140 0.08980 0.76890 1.00000 0.03166 O5* 0.07980 0.40980 0.76770 1.00000 0.03040 O6 0.23130 0.99770 0.24170 1.00000 0.03926 O6* 0.23090 0.50200 0.24230 1.00000 0.03800 O7 0.38290 0.98990 0.79670 1.00000 0.02406 O7* 0.38270 0.51050 0.79640 1.00000 0.02533 O8 0.00000 0.00000 0.50000 1.00000 0.04813 O8* 0.00000 0.50000 0.50000 1.00000 0.04433 O9 0.56800 0.25030 0.50110 1.00000 0.03673 Wat10 0.05600 0.24970 0.46760 1.00000 0.05193 Wat11 0.93100 0.14700 0.14700 1.00000 0.07092 Wat11* 0.93000 0.35270 0.14800 1.00000 0.07092 Wat12 0.60300 0.24930 0.02900 1.00000 0.06586 Wat13 0.07600 0.24950 0.86280 1.00000 0.06079