data_global _chemical_name_mineral 'Rapidcreekite' loop_ _publ_author_name 'Cooper M A' 'Hawthorne F C' _journal_name_full 'The Canadian Mineralogist' _journal_volume 34 _journal_year 1996 _journal_page_first 99 _journal_page_last 106 _publ_section_title ; The crystal structure of rapidcreekite, Ca2(SO4)(CO3)(H2O)4, and its relation to the structure of gypsum ; _database_code_amcsd 0005481 _chemical_formula_sum 'Ca2 S C O11 H8' _cell_length_a 15.517 _cell_length_b 19.226 _cell_length_c 6.1646 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1839.084 _exptl_crystal_density_diffrn 2.227 _symmetry_space_group_name_H-M 'P c n b' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,-z' '-x,1/2-y,z' '1/2-x,y,1/2+z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ca1 0.33410 0.28960 0.20090 Ca2 0.32760 0.05330 0.18830 S 0.16880 0.41930 0.02680 C 0.19140 0.17390 0.43100 O1 0.22470 0.35890 0.05000 O2 0.21370 0.23290 0.35700 O3 0.38980 0.40390 0.34300 O4 0.37120 0.17140 0.07350 O5 0.22860 0.11680 0.38300 O6 0.28100 0.48300 0.48400 O7 0.11810 0.43210 0.22200 Wat1 0.08940 0.23890 0.01300 Wat2 0.04780 0.32360 0.46600 Wat3 0.07460 0.01960 0.39700 Wat4 0.43410 0.09140 0.46900 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 0.01290 0.01060 0.01400 0.00010 0.00050 -0.00050 Ca2 0.01330 0.00980 0.01490 -0.00030 0.00040 -0.00020 S 0.01400 0.00990 0.01430 -0.00200 -0.00130 -0.00210 C 0.01060 0.01130 0.01200 0.00390 -0.00240 -0.00120 O1 0.01800 0.01580 0.02500 0.00800 -0.00690 0.00320 O2 0.01850 0.00900 0.01750 -0.00690 0.00510 0.00020 O3 0.01620 0.01290 0.02460 -0.00270 0.00400 -0.00340 O4 0.01650 0.01180 0.01710 0.00080 -0.00290 -0.00370 O5 0.01840 0.01090 0.02160 0.00070 0.00880 0.00290 O6 0.02350 0.01030 0.01600 0.00230 -0.00630 0.00000 O7 0.02030 0.02020 0.01580 -0.00250 0.00650 0.00010 Wat1 0.01860 0.02310 0.02480 -0.00320 -0.00040 -0.00140 Wat2 0.01810 0.03070 0.02570 -0.00520 -0.00790 0.00460 Wat3 0.01730 0.02110 0.01620 -0.00530 -0.00600 0.00180 Wat4 0.01400 0.02330 0.02260 -0.00160 -0.00250 0.00220