data_global _chemical_name_mineral 'Clinoatacamite' loop_ _publ_author_name 'Zheng X G' 'Kawae T' 'Kashitani Y' 'Li C S' 'Tateiwa N' 'Takeda K' 'Yamada H' 'Xu C N' 'Ren Y' _journal_name_full 'Physical Review' _journal_volume B71 _journal_year 2005 _journal_page_first 052409 _journal_page_last 4 _publ_section_title ; Unconventional magnetic transitions in the mineral clinoatacamite ; _database_code_amcsd 0017752 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Cu2 (O3 Cl) H3' _cell_length_a 6.1637 _cell_length_b 6.8166 _cell_length_c 9.1140 _cell_angle_alpha 90 _cell_angle_beta 99.6515 _cell_angle_gamma 90 _cell_volume 377.509 _exptl_crystal_density_diffrn 3.758 _symmetry_space_group_name_H-M 'P 1 21/n 1' loop_ _space_group_symop_operation_xyz 'x,y,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 _atom_site_U_iso_or_equiv Cu1 0.00000 0.50000 0.50000 0.00720 Cu2 0.00000 0.00000 0.00000 0.00720 Cu3 0.25900 0.23580 0.74680 0.00720 O-H1 0.31100 0.28830 0.55130 0.01260 O-H2 0.42550 -0.00800 0.77890 0.01260 O-H3 0.25230 0.68440 0.53620 0.01260 Cl 0.11300 -0.00440 0.30800 0.01410