data_global _chemical_name_mineral 'Clinoptilolite-Ca' loop_ _publ_author_name 'Alberti A' _journal_name_full 'Tschermaks Mineralogische und Petrographische Mitteilungen' _journal_volume 22 _journal_year 1975 _journal_page_first 25 _journal_page_last 37 _publ_section_title ; The crystal structure of two clinoptilolites ; _database_code_amcsd 0015651 _chemical_compound_source 'Agoura, California, USA' _chemical_formula_sum 'Ca1.58 Si16.8 Al1.2 O46.9 H21.8' _cell_length_a 17.646 _cell_length_b 17.898 _cell_length_c 7.397 _cell_angle_alpha 90 _cell_angle_beta 116.37 _cell_angle_gamma 90 _cell_volume 2093.088 _exptl_crystal_density_diffrn 2.126 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-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 0.14180 0.00000 0.66730 0.34000 ? Ca2 0.03820 0.50000 0.20880 0.34000 ? Ca3 0.00000 0.00000 0.00000 0.22000 0.25964 Si1 0.17950 0.16920 0.09560 1.00000 ? Al2 0.21170 0.41030 0.50340 0.30000 ? Si2 0.21170 0.41030 0.50340 0.70000 ? Si3 0.20910 0.19030 0.71530 1.00000 ? Si4 0.06590 0.29750 0.41350 1.00000 ? Si5 0.00000 0.21460 0.00000 1.00000 ? O1 0.19450 0.50000 0.45540 1.00000 ? O2 0.23460 0.12200 0.61320 1.00000 ? O3 0.18530 0.15460 0.88450 1.00000 ? O4 0.23550 0.10560 0.25280 1.00000 ? O5 0.00000 0.32180 0.50000 1.00000 ? O6 0.08090 0.16040 0.05670 1.00000 ? O7 0.12770 0.23260 0.54610 1.00000 ? O8 0.01230 0.26820 0.18590 1.00000 ? O9 0.21260 0.25180 0.18420 1.00000 ? O10 0.11760 0.37090 0.41290 1.00000 ? Wat1 0.23320 0.50000 0.03330 1.00000 0.04306 Wat2 0.08650 0.00000 0.81330 0.49000 0.19884 Wat3 0.07920 0.41750 0.96220 0.91000 0.10259 Wat4 0.00000 0.50000 0.50000 1.00000 0.09752 Wat5 0.02260 0.08970 0.46550 0.48000 0.26470 Wat6 0.07940 0.00000 0.25700 0.68000 0.20771 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Ca1 0.11143 0.04382 0.06764 0.00000 0.02654 0.00000 Ca2 0.01393 0.03408 0.03404 0.00000 -0.00372 0.00000 Si1 0.01140 0.01785 0.01113 0.00000 0.00584 0.00060 Al2 0.01520 0.01298 0.01380 0.00143 0.00690 0.00060 Si2 0.01520 0.01298 0.01380 0.00143 0.00690 0.00060 Si3 0.01393 0.01623 0.01001 0.00143 0.00584 0.00060 Si4 0.01140 0.01785 0.01090 0.00000 0.00584 -0.00060 Si5 0.01266 0.01947 0.01046 0.00000 0.00478 0.00000 O1 0.04052 0.01785 0.02292 0.00000 0.01327 0.00000 O2 0.03799 0.03083 0.03449 0.00000 0.02336 -0.00961 O3 0.04685 0.03570 0.02670 -0.00430 0.02495 0.00060 O4 0.03039 0.02921 0.02270 0.01003 0.00743 0.00541 O5 0.04179 0.04544 0.04250 0.00000 0.03344 0.00000 O6 0.02026 0.02434 0.03471 0.00143 0.01327 0.00120 O7 0.03166 0.04544 0.03160 0.01290 0.00265 0.00961 O8 0.03292 0.04544 0.02158 0.00143 0.00743 -0.01262 O9 0.02659 0.03246 0.03449 -0.01003 0.01486 -0.00901 O10 0.02912 0.02597 0.04161 -0.00860 0.01645 0.00060