#------------------------------------------------------------------------------ #$Date: 2008-03-10 10:25:41 +0200 (Mon, 10 Mar 2008) $ #$Revision: 255 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9000401.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_9000401 loop_ _publ_author_name 'Moore P B' 'Araki T' _publ_section_title ; Montgomeryite, Ca4Mg(H2O)12[Al4(OH)4(PO4)6]:. Its crystal structure and relation to Vauxite, Fe2(H2O)4[Al4(OH)4(H2O)4(PO4)4].4H2O ; _journal_name_full 'American Mineralogist' _journal_page_first 843 _journal_page_last 850 _journal_volume 59 _journal_year 1974 _chemical_formula_sum 'Ca2 Mg.5 Al2 P3 O20 H14' _chemical_name_mineral Montgomeryite _symmetry_space_group_name_H-M 'C 1 2/c 1' _cell_angle_alpha 90 _cell_angle_beta 91.55 _cell_angle_gamma 90 _cell_length_a 10.023 _cell_length_b 24.121 _cell_length_c 6.243 _cell_volume 1508.785 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2+y,z x,-y,1/2+z 1/2+x,1/2-y,1/2+z -x,y,1/2-z 1/2-x,1/2+y,1/2-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 Ca1 0.00000 0.06115 0.25000 1.00000 0.01710 Ca2 0.00000 0.33098 0.25000 1.00000 0.01305 Mg 0.00000 0.47080 0.25000 0.50000 0.00950 Al1 0.25000 0.25000 0.00000 1.00000 0.01001 Al2 0.00000 0.17151 -0.25000 1.00000 0.01064 P1 0.50000 0.29944 -0.25000 1.00000 0.00937 P2 0.25820 0.11548 -0.04050 1.00000 0.01102 O1 0.61720 0.26040 0.70720 1.00000 0.01431 O2 0.46930 0.33660 0.55480 1.00000 0.01418 O3 0.30960 0.17490 0.01200 1.00000 0.01343 O4 0.37540 0.08720 -0.14970 1.00000 0.01570 O5 0.13620 0.11780 -0.20090 1.00000 0.01570 O6 0.21840 0.08560 0.16200 1.00000 0.02140 O-H 0.37120 0.27150 0.21890 1.00000 0.01115 Wat1 0.16140 0.33010 0.52920 1.00000 0.02672 Wat2 0.11220 0.02610 0.58260 1.00000 0.02014 Wat3 0.11880 0.47310 0.57230 1.00000 0.04673