data_global _chemical_name_mineral 'Collinsite' loop_ _publ_author_name 'Brotherton P D' 'Maslen E N' 'Pryce M W' 'White A H' _journal_name_full 'Australian Journal of Chemistry' _journal_volume 27 _journal_year 1974 _journal_page_first 653 _journal_page_last 656 _publ_section_title ; Crystal structure of collinsite ; _database_code_amcsd 0012055 _chemical_formula_sum 'Mg Ca2 P2 O10 H4' _cell_length_a 5.7344 _cell_length_b 6.780 _cell_length_c 5.4413 _cell_angle_alpha 97.29 _cell_angle_beta 108.56 _cell_angle_gamma 107.28 _cell_volume 185.681 _exptl_crystal_density_diffrn 2.955 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,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 Mg 0.00000 0.00000 0.00000 ? Ca 0.30310 0.75900 0.65440 ? P 0.33360 0.24360 0.66330 ? O1 0.33190 0.12760 0.89050 ? O2 0.25490 0.07200 0.40280 ? O3 0.15470 0.37400 0.63340 ? O4 0.61850 0.38640 0.72120 ? O5 0.94890 0.27760 0.06850 ? H1 0.12000 0.39000 0.15000 0.00580 H2 0.77000 0.28000 0.89000 0.00140 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 Mg 0.01100 0.01000 0.01000 0.00300 0.00200 0.00100 Ca 0.01200 0.01300 0.01200 0.00300 0.00400 0.00200 P 0.01100 0.01000 0.00900 0.00300 0.00200 0.00200 O1 0.01200 0.01300 0.00600 0.00500 0.00200 0.00500 O2 0.01100 0.01100 0.00900 0.00000 0.00100 -0.00100 O3 0.01300 0.00900 0.01400 0.00600 0.00500 0.00400 O4 0.00900 0.01100 0.00900 0.00100 0.00200 0.00400 O5 0.01100 0.01200 0.00800 0.00300 0.00300 -0.00300