data_global _chemical_name_mineral 'Fluor-arfvedsonite' loop_ _publ_author_name 'Hawthorne F C' 'Oberti R' 'Ottolini L' _journal_name_full 'The Canadian Mineralogist' _journal_volume 34 _journal_year 1996 _journal_page_first 1015 _journal_page_last 1019 _publ_section_title ; Lithium-bearing fluor-arfvedsonite from Hurricane Mountain, New Hampshire: a crystal-chemical study Sample:H2 - 2[(K.25Na.75)Na2(Li.48Fe2.84Mn.11Zn.05Fe1.45Ti.07) (Si7.89Al0.11)O22(F1.35{OH}.65)] ; _database_code_amcsd 0005508 _chemical_compound_source 'Hurricane Mountain, New Hampshire, USA' _chemical_formula_sum '(Si7.76 Al.24) Fe3.88 Ti.06 Zn.06 Li Na2.75 K.25 O22.64 (F1.36 H.64)' _cell_length_a 9.832 _cell_length_b 17.990 _cell_length_c 5.316 _cell_angle_alpha 90 _cell_angle_beta 103.79 _cell_angle_gamma 90 _cell_volume 913.179 _exptl_crystal_density_diffrn 3.333 _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 SiT1 0.27870 0.08590 0.29070 0.97000 0.00583 AlT1 0.27870 0.08590 0.29070 0.03000 0.00583 SiT2 0.28940 0.17060 0.80100 0.97000 0.00595 AlT2 0.28940 0.17060 0.80100 0.03000 0.00595 FeM1 0.00000 0.08992 0.50000 1.00000 0.00773 FeM2 0.00000 0.18222 0.00000 0.94000 0.00684 TiM2 0.00000 0.18222 0.00000 0.03000 0.00684 ZnM2 0.00000 0.18222 0.00000 0.03000 0.00684 LiM3 0.00000 0.00000 0.00000 0.48000 0.00760 LiM3 0.00000 0.00000 0.00000 0.41000 0.00760 LiM3 0.00000 0.00000 0.00000 0.11000 0.00760 NaM4 0.00000 0.27767 0.50000 1.00000 0.01507 NaA 0.00000 0.50000 0.00000 0.37000 0.01507 KA 0.00000 0.50000 0.00000 0.13000 0.01507 NaA(m) 0.04680 0.50000 0.10280 0.19000 0.03711 KA(m) 0.04680 0.50000 0.10280 0.06000 0.03711 O1 0.11060 0.09110 0.20720 1.00000 0.00823 O2 0.11990 0.17210 0.73530 1.00000 0.00836 F3 0.11250 0.00000 0.70810 0.68000 0.01418 O-H3 0.11250 0.00000 0.70810 0.32000 0.01418 O4 0.36490 0.24890 0.80080 1.00000 0.01089 O5 0.34890 0.12760 0.08110 1.00000 0.01026 O6 0.34070 0.12010 0.57840 1.00000 0.00975 O7 0.33280 0.00000 0.29950 1.00000 0.01140