data_global _chemical_name_mineral 'Vayrynenite' loop_ _publ_author_name 'Mrose M E' 'Appleman D E' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 117 _journal_year 1962 _journal_page_first 16 _journal_page_last 36 _publ_section_title ; The crystal structures and crystal chemistry of vayrynenite, (Mn,Fe)Be(PO4)(OH), and euclase, AlBe(SiO4)(OH) ; _database_code_amcsd 0010590 _chemical_compound_source 'the Viitaniemi pegmatite in the parish of Erajarvi in central Finland' _chemical_formula_sum '(Mn.85 Fe.15) Be P O5 H' _cell_length_a 5.411 _cell_length_b 14.49 _cell_length_c 4.730 _cell_angle_alpha 90 _cell_angle_beta 102.75 _cell_angle_gamma 90 _cell_volume 361.713 _exptl_crystal_density_diffrn 3.233 _symmetry_space_group_name_H-M 'P 1 21/a 1' loop_ _space_group_symop_operation_xyz 'x,y,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 Mn 0.24800 0.43900 0.94000 0.85000 0.00646 Fe 0.24800 0.43900 0.94000 0.15000 0.00646 Be 0.43100 0.26400 0.78300 1.00000 0.00823 P 0.19500 0.10450 0.53900 1.00000 0.00291 O1 0.36600 0.04010 0.75300 1.00000 0.00747 O2 0.46300 0.36620 0.65400 1.00000 0.00494 O3 0.34600 0.19320 0.50600 1.00000 0.00583 O4 0.10600 0.06000 0.24500 1.00000 0.00747 O-H 0.21200 0.27650 0.96900 1.00000 0.00937