data_9007592 _chemical_name 'Brazilianite' loop_ _publ_author_name 'Gatehouse B M' 'Miskin B K' _journal_name_full "Acta Crystallographica, Section B" _journal_volume 30 _journal_year 1974 _journal_page_first 1311 _journal_page_last 1317 _publ_section_title ; The crystal structure of brazilianite, NaAl3(PO4)2(OH)4 Locality: Corrego Frio pegmatite, Minas Gerais, Brazil ; _chemical_formula_sum 'P2 Al3 Na O12 H4' _cell_length_a 11.233 _cell_length_b 10.142 _cell_length_c 7.097 _cell_angle_alpha 90 _cell_angle_beta 97.37 _cell_angle_gamma 90 _cell_volume 801.847 _symmetry_space_group_name_H-M 'P 1 21/n 1' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_Uiso_or_equiv P1 0.18040 0.31220 0.23750 ? P2 0.31240 0.32790 0.75380 ? Al1 0.04320 0.22040 0.56140 ? Al2 0.26300 0.06730 0.50820 ? Al3 0.45940 0.25450 0.43280 ? Na 0.30360 0.07510 0.03500 ? O1 0.10350 0.07940 0.44980 0.00671 O2 0.42380 0.10100 0.56200 0.00709 O3 0.00300 0.34960 0.72430 0.00684 O4 0.49740 0.38600 0.26980 0.00697 O5 0.11450 0.23920 0.06640 0.00836 O6 0.28780 0.22190 0.31870 0.00671 O7 0.22600 0.21350 0.68110 0.00697 O8 0.38780 0.28060 0.93480 0.00785 O9 0.10000 0.34030 0.39350 0.00773 O10 0.39170 0.36730 0.60140 0.00773 O11 0.22590 0.44680 0.18220 0.00874 O12 0.23550 0.44870 0.79070 0.00773 H1 0.06200 0.00300 0.37200 0.01267 H2 0.46400 0.09800 0.68000 0.01267 H3 0.07300 0.40800 0.74800 0.01267 H4 0.04600 0.05800 0.84000 0.01267