data_global _chemical_name_mineral 'Pumpellyite-(Al)' loop_ _publ_author_name 'Hatert F' 'Pasero M' 'Perchiazzi N' 'Theye T' _journal_name_full 'European Journal of Mineralogy' _journal_volume 19 _journal_year 2007 _journal_page_first 247 _journal_page_last 253 _publ_section_title ; Pumpellyite-(Al), a new mineral from Bertrix, Belgian Ardennes ; _database_code_amcsd 0007217 _chemical_compound_source 'Bertrix, Ardennes mountains, Belgium' _chemical_formula_sum 'Ca2 Al2.75 Fe.125 Mg.125 Si3 O14' _cell_length_a 8.818 _cell_length_b 5.898 _cell_length_c 19.126 _cell_angle_alpha 90 _cell_angle_beta 97.26 _cell_angle_gamma 90 _cell_volume 986.741 _exptl_crystal_density_diffrn 3.181 _symmetry_space_group_name_H-M 'A 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '-x,y,-z' '-x,1/2+y,1/2-z' 'x,-y,z' 'x,1/2-y,1/2+z' '-x,-y,-z' '-x,1/2-y,1/2-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 Ca1 0.25010 0.50000 0.33970 1.00000 0.04100 Ca2 0.19030 0.50000 0.15470 1.00000 0.04100 AlM1 0.50000 0.25000 0.25000 0.75000 0.03400 FeM1 0.50000 0.25000 0.25000 0.12500 0.03400 MgM1 0.50000 0.25000 0.25000 0.12500 0.03400 AlM2 0.25430 0.24850 0.49630 1.00000 0.02500 Si1 0.05560 0.00000 0.09340 1.00000 0.03400 Si2 0.17110 0.00000 0.24770 1.00000 0.03400 Si3 0.46270 0.00000 0.40420 1.00000 0.03400 O1 0.14150 0.22300 0.07030 1.00000 0.04700 O2 0.27930 0.22650 0.24520 1.00000 0.04700 O3 0.37010 0.22860 0.41710 1.00000 0.04700 O4 0.12430 0.50000 0.44080 1.00000 0.04700 O5 0.12560 0.00000 0.45900 1.00000 0.04700 O6 0.36620 0.50000 0.04780 1.00000 0.04700 O7 0.37060 0.00000 0.03150 1.00000 0.04700 O8 0.03890 0.00000 0.17760 1.00000 0.04700 O9 0.48300 0.50000 0.17550 1.00000 0.04700 O10 0.06580 0.00000 0.31290 1.00000 0.04700 O11 0.50970 0.50000 0.31880 1.00000 0.04700