data_global _chemical_name_mineral 'Hellandite-(Y)' loop_ _publ_author_name 'Miyawaki R' 'Momma K' 'Yokoyama K' 'Shigeoka M' 'Matsubara S' 'Ito M' 'Nakai I' 'Kristiansen R' _journal_name_full 'The Canadian Mineralogist' _journal_volume 53 _journal_year 2015 _journal_page_first 345 _journal_page_last 356 _publ_section_title ; Mn-bearing hellandite-(Y) from the Heftetjern pegmatite, Tordal, Norway ; _database_code_amcsd 0020232 _chemical_compound_source 'Heftetjern, Tordal, Telemark, Norway' _chemical_formula_sum '(Al.92 Fe.08) Y2.752 Yb.386 Ca1.582 Mn.88 Si4 B4 O24 H2' _cell_length_a 18.609 _cell_length_b 4.6307 _cell_length_c 10.143 _cell_angle_alpha 90 _cell_angle_beta 111.475 _cell_angle_gamma 90 _cell_volume 813.371 _exptl_crystal_density_diffrn 4.059 _symmetry_space_group_name_H-M 'P 1 2/a 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2-x,y,-z' '1/2+x,-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 Al1 0.00000 0.00000 0.00000 0.92000 0.01380 Fe1 0.00000 0.00000 0.00000 0.08000 0.01380 Y2 0.04231 0.02021 0.35947 0.94300 0.00774 Yb2 0.04231 0.02021 0.35947 0.05670 0.00774 Ca3 0.24672 0.00215 0.65778 0.56000 0.01040 Mn3 0.24672 0.00215 0.65778 0.44000 0.01040 Y4 0.15507 -0.04275 0.92895 0.43300 0.01532 Ca4 0.15507 -0.04275 0.92895 0.23100 0.01532 Yb4 0.15507 -0.04275 0.92895 0.13650 0.01532 Si1 0.09970 0.48676 0.64705 1.00000 0.00920 Si2 0.11117 0.49617 0.16171 1.00000 0.01060 B1 0.17100 0.53010 0.45220 1.00000 0.01080 B2 0.25440 0.45590 0.13480 1.00000 0.01020 O1 0.03942 0.24330 0.56240 1.00000 0.01160 O2 0.17507 0.31190 0.75700 1.00000 0.01560 O3 0.06910 -0.29350 0.73630 1.00000 0.01390 O4 0.13177 -0.32570 0.54230 1.00000 0.01480 O5 0.03821 0.19000 0.87050 1.00000 0.01270 O6 0.24417 -0.23880 0.86030 1.00000 0.01490 O7 0.16602 0.22570 0.44840 1.00000 0.01330 O8 0.12932 0.67320 0.30960 1.00000 0.01910 O9 0.18864 0.33010 0.16460 1.00000 0.02520 O10 0.08544 0.73710 0.04080 1.00000 0.01290 O11 0.05237 0.24110 0.15470 1.00000 0.01270 O12 0.25000 0.32450 0.00000 1.00000 0.02660 O13 0.25000 0.65030 0.50000 1.00000 0.01840 H5 0.03600 0.42700 0.88200 1.00000 0.14000 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 Al1 0.01530 0.01460 0.01250 -0.00060 0.00640 -0.00060 Fe1 0.01530 0.01460 0.01250 -0.00060 0.00640 -0.00060 Y2 0.00590 0.00960 0.00840 -0.00046 0.00347 -0.00031 Yb2 0.00590 0.00960 0.00840 -0.00046 0.00347 -0.00031 Ca3 0.01110 0.00960 0.00990 -0.00010 0.00330 -0.00089 Mn3 0.01110 0.00960 0.00990 -0.00010 0.00330 -0.00089 Y4 0.01470 0.01670 0.01850 0.00422 0.01070 0.00353 Ca4 0.01470 0.01670 0.01850 0.00422 0.01070 0.00353 Yb4 0.01470 0.01670 0.01850 0.00422 0.01070 0.00353 Si1 0.00760 0.01060 0.00990 -0.00020 0.00400 0.00000 Si2 0.00810 0.01190 0.01130 0.00010 0.00310 -0.00020 B1 0.01020 0.00830 0.01500 0.00000 0.00550 -0.00180 B2 0.00860 0.01080 0.01170 -0.00130 0.00410 0.00010 O1 0.01110 0.01080 0.01270 -0.00120 0.00410 -0.00040 O2 0.00870 0.01280 0.02170 0.00130 0.00140 0.00070 O3 0.01100 0.01580 0.01560 0.00280 0.00580 0.00000 O4 0.01450 0.01240 0.01960 0.00110 0.00890 0.00170 O5 0.01130 0.01420 0.01460 -0.00080 0.00690 -0.00180 O6 0.01260 0.01240 0.01990 0.00180 0.00630 0.00140 O7 0.01000 0.01240 0.01620 -0.00210 0.00330 0.00120 O8 0.02500 0.01310 0.01400 0.00360 0.00090 -0.00140 O9 0.01210 0.02030 0.04800 0.00560 0.01690 0.01520 O10 0.00790 0.01550 0.01440 0.00170 0.00290 0.00160 O11 0.00990 0.01650 0.01130 -0.00360 0.00320 -0.00060 O12 0.05400 0.01300 0.01330 0.00000 0.01280 0.00000 O13 0.01260 0.01440 0.03000 0.00000 0.00940 0.00000