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 = 1023 K ; _database_code_amcsd 0004555 _chemical_compound_source 'trioctahedral mica, Cava St. Antonia, Mt. Vulture, Potenza, Italy' _chemical_formula_sum 'K (Mg2.214 Fe.786) Si2.694 Al1.224 O12' _cell_length_a 5.3621 _cell_length_b 9.2897 _cell_length_c 10.2986 _cell_angle_alpha 90 _cell_angle_beta 100.064 _cell_angle_gamma 90 _cell_volume 505.104 _exptl_crystal_density_diffrn 2.877 _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 1.03510 0.08600 MgM1 0.00000 0.00000 0.50000 0.73770 0.02970 FeM1 0.00000 0.00000 0.50000 0.26230 0.02970 MgM2 0.00000 0.34050 0.50000 0.73810 0.02450 FeM2 0.00000 0.34050 0.50000 0.26190 0.02450 Si 0.07490 0.16740 0.22680 0.67350 0.02170 Al 0.07490 0.16740 0.22680 0.30610 0.02170 O1 0.31320 0.24250 0.16830 1.00000 0.03800 O2 0.04100 0.00000 0.17180 1.00000 0.04200 O3 0.13150 0.16880 0.39160 1.00000 0.02680 O4 0.13400 0.50000 0.40120 1.00000 0.02800