data_global _chemical_name_mineral 'Phlogopite' loop_ _publ_author_name 'Ventruti G' 'Zema M' 'Scordari F' 'Pedrazzi G' _journal_name_full 'American Mineralogist' _journal_volume 93 _journal_year 2008 _journal_page_first 632 _journal_page_last 643 _publ_section_title ; Thermal behavior of a Ti-rich phlogopite from Mt. Vulture (Potenza, Italy): An in situ X-ray single-crystal diffraction study Sample: T = 473 K ; _database_code_amcsd 0004551 _chemical_compound_source 'trioctahedral mica, Cava St. Antonia, Mt. Vulture, Potenza, Italy' _chemical_formula_sum 'K (Mg2.216 Fe.784) Si2.695 Al1.225 O12' _cell_length_a 5.3400 _cell_length_b 9.2470 _cell_length_c 10.2465 _cell_angle_alpha 90 _cell_angle_beta 100.055 _cell_angle_gamma 90 _cell_volume 498.190 _exptl_crystal_density_diffrn 2.916 _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 K 0.00000 0.50000 0.00000 1.02910 0.04590 MgM1 0.00000 0.00000 0.50000 0.73990 0.01260 FeM1 0.00000 0.00000 0.50000 0.26010 0.01260 MgM2 0.00000 0.33500 0.50000 0.73800 0.01380 FeM2 0.00000 0.33500 0.50000 0.26200 0.01380 Si 0.07560 0.16680 0.22610 0.67370 0.01280 Al 0.07560 0.16680 0.22610 0.30620 0.01280 O1 0.32540 0.23140 0.16800 1.00000 0.02690 O2 0.01570 0.00000 0.17050 1.00000 0.02200 O3 0.13110 0.16760 0.39160 1.00000 0.01490 O4 0.12750 0.50000 0.39740 1.00000 0.01790