data_global _chemical_name_mineral 'Lotharmeyerite' loop_ _publ_author_name 'Yang Y W' 'Evans S H' 'Downs R T' 'Yang H' _journal_name_full 'Acta Crystallographica, Section E' _journal_volume 68 _journal_year 2012 _journal_page_first i9 _journal_page_last i10 _publ_section_title ; Lotharmeyerite, Ca(Zn,Mn)2(AsO4)2(H2O,OH)2 Note: RRUFF.info/R060862 ; _database_code_amcsd 0018604 _chemical_compound_source 'Mapimi, Durango, Mexico' _chemical_formula_sum 'Ca (Zn1.024 Mn.976) As2 O10 H3' _cell_length_a 9.0727 _cell_length_b 6.2530 _cell_length_c 7.4150 _cell_angle_alpha 90 _cell_angle_beta 116.739 _cell_angle_gamma 90 _cell_volume 375.681 _exptl_crystal_density_diffrn 4.186 _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 Ca1 0.00000 0.00000 0.00000 1.00000 0.01360 Zn1 0.25000 0.25000 0.50000 0.51200 0.00936 Mn1 0.25000 0.25000 0.50000 0.48800 0.00936 As1 0.41579 0.00000 0.20474 1.00000 0.00864 O1 0.33900 0.50000 0.41320 1.00000 0.01400 O2 0.31820 0.00000 0.35360 1.00000 0.01530 O3 0.03469 0.27980 0.24370 1.00000 0.01270 O4 0.25690 0.00000 -0.02650 1.00000 0.01990 H1 0.44000 0.50000 0.46400 0.50000 0.04000 H2 0.29800 0.50000 0.31300 1.00000 0.04000 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 Ca1 0.01850 0.01200 0.01080 0.00000 0.00700 0.00000 Zn1 0.00931 0.00899 0.00800 0.00002 0.00232 -0.00002 Mn1 0.00931 0.00899 0.00800 0.00002 0.00232 -0.00002 As1 0.00787 0.00860 0.00895 0.00000 0.00336 0.00000 O1 0.00980 0.02010 0.00920 0.00000 0.00170 0.00000 O2 0.01920 0.01160 0.02200 0.00000 0.01550 0.00000 O3 0.01220 0.01100 0.01460 0.00230 0.00570 -0.00050 O4 0.01500 0.02940 0.01110 0.00000 0.00200 0.00000