data_global _chemical_name_mineral 'Depmeierite' loop_ _publ_author_name 'Pekov I V' 'Olysych L V' 'Chukanov N V' 'Van K V' 'Pushcharovsky D Y' _journal_name_full 'Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva' _journal_volume 139 _journal_year 2010 _journal_page_first 63 _journal_page_last 74 _publ_section_title ; Depmeierite Na8[Al6Si6O24](PO4,CO3)1-x*3H2O (x<0.5) - a new cancrinite group mineral from the Lovozero alkaline massif (Kola Peninsula, Russia) ; _database_code_amcsd 0017798 _chemical_compound_source 'Lovozero alkaline massif, Kola Peninsula, Russia' _chemical_formula_sum 'Na3.922 Al3 Si3 P.3 O14.69 H3.18' _cell_length_a 12.7345 _cell_length_b 12.7345 _cell_length_c 5.1798 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 727.457 _exptl_crystal_density_diffrn 2.296 _symmetry_space_group_name_H-M 'P 63' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x-y,x,1/2+z' '-y,x-y,z' '-x,-y,1/2+z' '-x+y,-x,z' 'y,-x+y,1/2+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 Na1 0.66667 0.33333 0.12120 0.98200 0.03110 Na2 0.13776 0.27865 0.28006 0.98000 0.03930 Al 0.07608 0.41475 0.75026 1.00000 0.01020 Si 0.32996 0.41374 0.75000 1.00000 0.00982 P1 0.00000 0.00000 0.53480 0.23000 0.04800 P2 0.00000 0.00000 0.22950 0.07000 0.04900 O1 0.20282 0.40392 0.67070 1.00000 0.01730 O2 0.12146 0.56699 0.72840 1.00000 0.02500 O3 0.02621 0.35498 0.05607 1.00000 0.01890 O4 0.32260 0.36329 0.03864 1.00000 0.01910 Wat1 0.69210 0.38120 0.68600 0.33000 0.05590 Wat2 -0.00060 0.10350 0.53220 0.20000 0.06100 O5 0.05130 0.12150 0.88540 0.20000 0.07700 O6 0.00000 0.00000 0.37140 0.20000 0.05800 O7 0.09300 0.10650 0.56530 0.10000 0.07100