data_global _chemical_name_mineral 'Hendricksite' loop_ _publ_author_name 'Robert J L' 'Gasperin M' _journal_name_full 'Tschermaks Mineralogische und Petrographische Mitteilungen' _journal_volume 34 _journal_year 1985 _journal_page_first 1 _journal_page_last 14 _publ_section_title ; Crystal structure refinement of hendricksite, a Zn- and Mn-rich trioctahedral potassium mica: a contribution to the crystal chemistry of zinc-bearing minerals Note: polytype 1M ; _database_code_amcsd 0015700 _chemical_compound_source 'Franklin Furnace, New Jersey, USA' _chemical_formula_sum '(K.89 Na.1 Ba.01) Mg1.572 Zn.54 Mn.4 Fe.252 Ti.072 Al1.138 Cr.006 Si2.92 O12 H2' _cell_length_a 5.340 _cell_length_b 9.254 _cell_length_c 10.235 _cell_angle_alpha 90 _cell_angle_beta 100.07 _cell_angle_gamma 90 _cell_volume 497.985 _exptl_crystal_density_diffrn 3.058 _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 KA 0.00000 0.00000 0.00000 0.89000 0.03040 NaA 0.00000 0.00000 0.00000 0.10000 0.00380 BaA 0.00000 0.00000 0.00000 0.01000 0.00380 Mg1 0.00000 0.50000 0.50000 0.52400 0.00380 Zn1 0.00000 0.50000 0.50000 0.18000 0.00380 Mn1 0.00000 0.50000 0.50000 0.13340 0.00380 Fe1 0.00000 0.50000 0.50000 0.08400 0.00380 Ti1 0.00000 0.50000 0.50000 0.02400 0.00380 Al1 0.00000 0.50000 0.50000 0.01920 0.00380 Cr1 0.00000 0.50000 0.50000 0.00200 0.00380 Mg2 0.00000 0.83170 0.50000 0.52400 0.00380 Zn2 0.00000 0.83170 0.50000 0.18000 0.00380 Mn2 0.00000 0.83170 0.50000 0.13340 0.00380 Fe2 0.00000 0.83170 0.50000 0.08400 0.00380 Ti2 0.00000 0.83170 0.50000 0.02400 0.00380 Al2 0.00000 0.83170 0.50000 0.01920 0.00380 Cr2 0.00000 0.83170 0.50000 0.00200 0.00380 Si 0.57500 0.16680 0.22520 0.73000 0.00760 Al 0.57500 0.16680 0.22520 0.27000 0.00760 O1 0.82420 0.23310 0.16740 1.00000 0.02026 O2 0.52110 0.00000 0.16710 1.00000 0.02153 O3 0.63130 0.16630 0.38980 1.00000 0.00887 O-H 0.12970 0.00000 0.39490 1.00000 0.00887 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 KA 0.02989 0.03024 0.03087 0.00000 0.00811 0.00000 NaA 0.02989 0.03024 0.03087 0.00000 0.00811 0.00000 BaA 0.02989 0.03024 0.03087 0.00000 0.00811 0.00000 Mg1 0.00088 0.00369 0.00772 0.00000 0.00188 0.00000 Zn1 0.00088 0.00369 0.00772 0.00000 0.00188 0.00000 Mn1 0.00088 0.00369 0.00772 0.00000 0.00188 0.00000 Fe1 0.00088 0.00369 0.00772 0.00000 0.00188 0.00000 Ti1 0.00088 0.00369 0.00772 0.00000 0.00188 0.00000 Al1 0.00088 0.00369 0.00772 0.00000 0.00188 0.00000 Cr1 0.00088 0.00369 0.00772 0.00000 0.00188 0.00000 Mg2 0.00101 0.00286 0.00823 0.00000 0.00099 0.00000 Zn2 0.00101 0.00286 0.00823 0.00000 0.00099 0.00000 Mn2 0.00101 0.00286 0.00823 0.00000 0.00099 0.00000 Fe2 0.00101 0.00286 0.00823 0.00000 0.00099 0.00000 Ti2 0.00101 0.00286 0.00823 0.00000 0.00099 0.00000 Al2 0.00101 0.00286 0.00823 0.00000 0.00099 0.00000 Cr2 0.00101 0.00286 0.00823 0.00000 0.00099 0.00000 Si 0.00583 0.00738 0.00972 -0.00121 0.00290 0.00000 Al 0.00583 0.00738 0.00972 -0.00121 0.00290 0.00000 O1 0.01874 0.02820 0.01492 -0.00454 0.00835 -0.00317 O2 0.02773 0.02043 0.01543 0.00000 0.00290 0.00000 O3 0.00620 0.00894 0.00972 -0.00256 0.00000 -0.00085 O-H 0.00342 0.00859 0.01291 0.00000 0.00000 0.00000