data_global _chemical_name_mineral 'Lapeyreite' loop_ _publ_author_name 'Sarp H' 'Cerny R' 'Babalik H' 'Hatipoglu M' 'Mari G' _journal_name_full 'American Mineralogist' _journal_volume 95 _journal_year 2010 _journal_page_first 171 _journal_page_last 176 _publ_section_title ; Lapeyreite, Cu3O[AsO3(OH)]2x0.75H2O, a new mineral: Its description and crystal structure ; _database_code_amcsd 0005002 _chemical_compound_source 'Daluis Gorge, Var Valley, Alpes-Maritimes, France' _chemical_formula_sum 'Cu2 As1.32 O6.5 H' _cell_length_a 19.158 _cell_length_b 2.9361 _cell_length_c 9.193 _cell_angle_alpha 90 _cell_angle_beta 103.26 _cell_angle_gamma 90 _cell_volume 503.318 _exptl_crystal_density_diffrn 4.368 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,1/2-y,-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 Cu1 0.42730 0.00000 0.17520 1.00000 0.02250 Cu2 0.67200 0.00000 0.47730 1.00000 0.02030 As1 0.08260 0.00000 0.16890 0.66000 0.03100 As2 0.22580 0.00000 0.80490 0.66000 0.03200 O1 0.21550 0.00000 0.60900 1.00000 0.02400 O2 0.12300 0.00000 0.35700 1.00000 0.03600 O3 0.99370 0.00000 0.17200 1.00000 0.02600 O4 0.13880 0.00000 0.82400 1.00000 0.03000 O5 0.76100 0.00000 0.87300 1.00000 0.18000 O6 0.60400 0.00000 0.10900 1.00000 0.23000 Wat7 0.48000 0.00000 0.47200 0.50000 0.07000