data_global _chemical_name_mineral 'Cancrinite' loop_ _publ_author_name 'Lotti P' 'Gatta G D' 'Rotiroti N' 'Camara F' _journal_name_full 'American Mineralogist' _journal_volume 97 _journal_year 2012 _journal_page_first 872 _journal_page_last 882 _publ_section_title ; High-pressure study of a natural cancrinite Note: P = 0.0001 GPa (P-DAC) ; _database_code_amcsd 0019025 _chemical_compound_source 'Cameroun' _chemical_formula_sum 'Si3 Al3 O15.64 Na3.522 Ca.438 C.88 H2' _cell_length_a 12.620 _cell_length_b 12.620 _cell_length_c 5.083 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 701.083 _exptl_crystal_density_diffrn 2.494 _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 Si 0.08240 0.41060 0.72440 1.00000 0.00820 Al 0.33720 0.41260 0.72310 1.00000 0.00870 O1 0.20070 0.40270 0.63400 1.00000 0.01300 O2 0.11400 0.55200 0.69800 1.00000 0.01900 O3 0.04620 0.35900 0.02000 1.00000 0.01200 O4 0.31990 0.35170 0.03600 1.00000 0.00700 Na1 0.66667 0.33333 0.10800 0.96000 0.03800 Na2 0.87460 0.75190 0.76730 0.85400 0.02700 Ca 0.87460 0.75190 0.76730 0.14600 0.02700 C1 0.00000 0.00000 0.91000 0.42100 0.00600 OC1 0.05800 0.11820 0.88100 0.42100 0.03800 C2 0.00000 0.00000 0.65200 0.45900 0.00600 OC2 0.06200 0.11900 0.66200 0.45900 0.03800 Wat 0.31600 0.61700 0.17300 0.33333 0.03900