data_global _chemical_name_mineral 'Coquimbite' loop_ _publ_author_name 'Demartin F' 'Castellano C' 'Gramaccioli C M' 'Campostrini I' _journal_name_full 'The Canadian Mineralogist' _journal_volume 48 _journal_year 2010 _journal_page_first 323 _journal_page_last 333 _publ_section_title ; Aluminum-for-iron substitution, hydrogen bonding, and a novel structure-type in coquimbite-like minerals ; _database_code_amcsd 0006335 _chemical_compound_source 'the Dexter No. 7 mine, Calf Mesa, San Rafael Swell, Utah, USA' _chemical_formula_sum 'Al Fe3 S6 O42 H36' _cell_length_a 10.9170 _cell_length_b 10.9170 _cell_length_c 17.0829 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 1763.189 _exptl_crystal_density_diffrn 2.063 _symmetry_space_group_name_H-M 'P -3 1 c' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x-y,-y,1/2+z' 'y,-x+y,-z' '-y,-x,1/2-z' '-x+y,-x,z' '-x,-x+y,1/2+z' '-x,-y,-z' '-x+y,y,1/2-z' '-y,x-y,z' 'y,x,1/2+z' 'x-y,x,-z' 'x,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 Al1 0.00000 0.00000 0.00000 1.00000 0.01316 Fe2 0.33333 0.66667 0.25000 1.00000 0.01144 Fe3 0.66667 0.33333 0.00252 1.00000 0.01706 S 0.24452 0.41476 0.12298 1.00000 0.01394 O1 0.31821 0.34525 0.09071 1.00000 0.02331 O2 0.10820 0.31058 0.15487 1.00000 0.02144 O3 0.21931 0.49404 0.06011 1.00000 0.02054 O4 0.33546 0.51568 0.18451 1.00000 0.01702 OW1 0.16438 0.06998 0.06151 1.00000 0.02145 OW2 0.44923 0.11635 0.20975 1.00000 0.03080 OW3 0.57172 0.16237 0.07102 1.00000 0.02932 H11 0.18310 0.01500 0.08690 1.00000 0.06300 H12 0.21940 0.15510 0.07450 1.00000 0.05000 H21 0.37350 0.03790 0.20630 1.00000 0.04000 H22a 0.51620 0.11040 0.23140 0.50000 0.05600 H22b 0.42020 0.16230 0.23560 0.50000 0.07500 H31 0.59680 0.10110 0.07280 1.00000 0.05500 H32 0.53180 0.14710 0.11520 1.00000 0.06300 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 Al1 0.01100 0.01100 0.01750 0.00550 0.00000 0.00000 Fe2 0.01042 0.01042 0.01348 0.00521 0.00000 0.00000 Fe3 0.01755 0.01755 0.01608 0.00877 0.00000 0.00000 S 0.01348 0.01082 0.01620 0.00508 -0.00077 -0.00228 O1 0.01950 0.01870 0.03280 0.01033 -0.00030 -0.00940 O2 0.01700 0.01700 0.02350 0.00338 0.00300 -0.00020 O3 0.02190 0.01820 0.01890 0.00809 -0.00360 0.00130 O4 0.01820 0.01500 0.01810 0.00852 -0.00420 -0.00564 OW1 0.02010 0.01500 0.02780 0.00764 -0.00870 -0.00170 OW2 0.02900 0.02590 0.03170 0.00940 0.00290 -0.00300 OW3 0.03880 0.02750 0.02750 0.02090 0.01370 0.00980