data_global _chemical_name_mineral 'Triphylite' loop_ _publ_author_name 'Losey A' 'Rakovan J F' 'Hughes J M' 'Francis C A' 'Dyar M D' _journal_name_full 'The Canadian Mineralogist' _journal_volume 42 _journal_year 2004 _journal_page_first 1105 _journal_page_last 1115 _publ_section_title ; Structural variation in the lithiophilite-triphylite series and other olivine-group structures Sample: Trip89 ; _database_code_amcsd 0005980 _chemical_compound_source 'G.E. Smith Quarry, Newport, New Hampshire' _chemical_formula_sum 'Li Mn.089 Mg.234 Fe.687 P O4' _cell_length_a 4.6904 _cell_length_b 10.2855 _cell_length_c 5.9871 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 288.836 _exptl_crystal_density_diffrn 3.469 _symmetry_space_group_name_H-M 'P b n m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,y,1/2-z' '-x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '-x,-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 Li 0.00000 0.00000 0.00000 1.00000 0.01963 Mn 0.97460 0.28164 0.25000 0.08900 0.00751 Mg 0.97460 0.28164 0.25000 0.23400 0.00751 Fe 0.97460 0.28164 0.25000 0.68700 0.00751 P 0.41690 0.09476 0.25000 1.00000 0.00747 O1 0.74120 0.09830 0.25000 1.00000 0.01051 O2 0.20550 0.45600 0.25000 1.00000 0.01026 O3 0.28270 0.16550 0.04650 1.00000 0.01064