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-AIR) ; _database_code_amcsd 0019024 _chemical_compound_source 'Cameroun' _chemical_formula_sum 'Si3 Al3 O15.64 Na3.522 Ca.438 C.88 H2' _cell_length_a 12.5976 _cell_length_b 12.5976 _cell_length_c 5.1168 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 703.242 _exptl_crystal_density_diffrn 2.487 _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 0.08267 0.41096 0.73380 1.00000 0.00900 Al 0.33709 0.41224 0.73420 1.00000 0.00870 O1 0.20140 0.40430 0.64190 1.00000 0.01550 O2 0.11450 0.55070 0.71090 1.00000 0.01980 O3 0.04430 0.35880 0.02760 1.00000 0.01640 O4 0.32120 0.35080 0.04420 1.00000 0.01480 Na1 0.66667 0.33333 0.11590 0.96000 0.02940 Na2 0.87420 0.75160 0.77640 0.85400 0.02870 Ca 0.87420 0.75160 0.77640 0.14600 0.02870 C1 0.00000 0.00000 0.91400 0.42100 0.04800 OC1 0.05620 0.11840 0.88800 0.42100 0.05200 C2 0.00000 0.00000 0.64900 0.45900 0.02100 OC2 0.06390 0.11960 0.66400 0.45900 0.03000 Wat 0.31500 0.61710 0.17100 0.33333 0.04800