data_global _chemical_name_mineral 'Shattuckite' loop_ _publ_author_name 'Evans H T' 'Mrose M E' _journal_name_full 'American Mineralogist' _journal_volume 62 _journal_year 1977 _journal_page_first 491 _journal_page_last 502 _publ_section_title ; The crystal chemistry of the hydrous copper silicates, shattuckite and plancheite Note: sample is from Ajo, Arizona ; _database_code_amcsd 0000578 _chemical_formula_sum 'Cu5 Si4 O14 H2' _cell_length_a 9.885 _cell_length_b 19.832 _cell_length_c 5.3825 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1055.182 _exptl_crystal_density_diffrn 4.130 _symmetry_space_group_name_H-M 'P c a b' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2-z' '-x,1/2-y,1/2+z' '1/2-x,y,1/2+z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Cu1 0.50000 0.00000 0.50000 Cu2 0.33090 0.02547 0.03970 Cu3 0.25205 0.28125 0.46765 Si1 0.54485 0.13502 0.21730 Si2 0.39742 0.15706 0.72650 O1 0.50540 0.05540 0.19960 O2 0.34260 0.08050 0.74390 O3 0.70760 0.15120 0.22030 O4 0.49130 0.17350 0.97080 O5 0.49070 0.16700 0.47770 O6 0.28360 0.21630 0.71930 O-h7 0.67790 0.02430 0.64260 H 0.71000 0.43500 0.63000 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 Cu1 0.00880 0.00790 0.00930 -0.00320 -0.00300 0.00420 Cu2 0.00950 0.00800 0.00730 -0.00250 -0.00140 0.00200 Cu3 0.01080 0.00460 0.00660 0.00010 -0.00250 -0.00040 Si1 0.00620 0.00390 0.00520 -0.00040 0.00140 0.00060 Si2 0.00640 0.00340 0.00530 0.00010 -0.00020 0.00030 O1 0.01050 0.00510 0.00670 -0.00380 -0.00290 0.00310 O2 0.01570 0.00320 0.01190 -0.00290 -0.00220 0.00240 O3 0.00510 0.00570 0.00830 -0.00240 0.00050 0.00180 O4 0.01010 0.00730 0.00610 -0.00140 -0.00070 -0.00100 O5 0.01360 0.00710 0.00690 0.00070 0.00290 -0.00370 O6 0.01090 0.00510 0.00430 0.00320 -0.00230 -0.00230 O-h7 0.00910 0.00590 0.00690 -0.00210 0.00160 -0.00020