data_9007718 _chemical_name 'Atacamite' loop_ _publ_author_name 'Parise J B' 'Hyde B G' _journal_name_full "Acta Crystallographica, Section C" _journal_volume 42 _journal_year 1986 _journal_page_first 1277 _journal_page_last 1280 _publ_section_title ; The structure of atacamite and its relationship to spinel Locality: Mina La Farola, Chile ; _chemical_formula_sum 'Cu2 Cl O3 H3' _cell_length_a 6.030 _cell_length_b 6.865 _cell_length_c 9.120 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 377.531 _symmetry_space_group_name_H-M 'P n m a' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_Uiso_or_equiv Cu1 0.00000 0.00000 0.00000 0.00700 Cu2 0.19060 0.25000 0.25530 0.00700 Cl 0.35180 0.75000 0.05560 0.01200 O1 0.14980 0.25000 -0.00180 0.01100 O2 0.44060 0.06510 0.28790 0.00800 H1 0.30490 0.25000 -0.01480 0.00300 H2 0.43310 -0.03340 0.22790 0.00300