data_global _chemical_name_mineral 'Lavinskyite' loop_ _publ_author_name 'Yang H' 'Downs R T' 'Evans S H' 'Pinch W W' _journal_name_full 'American Mineralogist' _journal_volume 99 _journal_year 2014 _journal_page_first 525 _journal_page_last 530 _publ_section_title ; Lavinskyite, K(LiCu)Cu6(Si4O11)2(OH)4, isotypic with plancheite, a new mineral from the Wessels mine, Kalahari Manganese Fields, South Africa ; _database_code_amcsd 0020034 _chemical_compound_source 'Wessels mine, Kalahari Manganese Fields, South Africa' _chemical_formula_sum 'K Li Cu6.55 Mg.45 Si8 O26 H4' _cell_length_a 19.046 _cell_length_b 20.377 _cell_length_c 5.2497 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 2037.411 _exptl_crystal_density_diffrn 3.644 _symmetry_space_group_name_H-M 'P c n b' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,-z' '-x,1/2-y,z' '1/2-x,y,1/2+z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '-x,-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 0.50000 0.25000 0.97250 1.00000 0.02390 LiM4 0.20810 0.30110 0.81400 0.50000 0.06100 CuM1 0.45964 0.00661 0.25459 0.77500 0.00846 MgM1 0.45964 0.00661 0.25459 0.22500 0.00846 CuM2 0.37544 0.02733 0.77970 1.00000 0.00960 CuM3 0.29265 0.05186 0.29637 1.00000 0.00918 CuM4 0.25019 0.30433 0.70605 0.50000 0.01450 Si1 0.64168 0.10879 0.92937 1.00000 0.00656 Si2 0.56233 0.12204 0.43146 1.00000 0.00660 Si3 0.40602 0.15778 0.47509 1.00000 0.00648 Si4 0.32834 0.18205 0.98224 1.00000 0.00701 O1 0.62791 0.03106 0.91920 1.00000 0.00880 O2 0.54587 0.04545 0.43190 1.00000 0.00950 O3 0.38089 0.08254 0.46530 1.00000 0.00860 O4 0.29968 0.10819 0.99860 1.00000 0.01160 O5 0.72370 0.12728 0.95520 1.00000 0.01270 O6 0.59839 0.14424 0.16380 1.00000 0.01110 O7 0.61253 0.14322 0.66770 1.00000 0.01150 O8 0.49132 0.16592 0.46160 1.00000 0.01220 O9 0.38343 0.19134 0.74180 1.00000 0.01100 O10 0.37822 0.19824 0.23060 1.00000 0.01080 O11 0.27090 0.23876 0.95970 1.00000 0.01610 O-h12 0.46093 0.06030 0.94340 1.00000 0.01270 O-h13 0.28510 0.00195 0.61920 1.00000 0.00820 H1 0.27400 -0.03200 0.59300 1.00000 0.04000 H2 0.46900 0.09600 0.91600 1.00000 0.04000 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 0.02000 0.02790 0.02380 -0.00940 0.00000 0.00000 CuM1 0.00920 0.00960 0.00650 -0.00285 -0.00239 0.00292 MgM1 0.00920 0.00960 0.00650 -0.00285 -0.00239 0.00292 CuM2 0.00940 0.01169 0.00771 -0.00220 -0.00182 0.00302 CuM3 0.00951 0.01220 0.00585 -0.00343 -0.00187 0.00271 CuM4 0.01170 0.00740 0.02440 0.00010 -0.00740 0.00030 Si1 0.00770 0.00680 0.00510 -0.00090 -0.00070 0.00010 Si2 0.00790 0.00680 0.00500 -0.00040 0.00000 0.00020 Si3 0.00680 0.00750 0.00510 -0.00110 0.00030 0.00040 Si4 0.00880 0.00750 0.00480 -0.00070 -0.00020 0.00020 O1 0.01020 0.00750 0.00870 -0.00160 -0.00100 -0.00010 O2 0.01280 0.00810 0.00760 -0.00200 0.00030 0.00160 O3 0.01080 0.00780 0.00710 -0.00330 -0.00170 -0.00020 O4 0.01460 0.01170 0.00870 -0.00220 -0.00220 0.00040 O5 0.00820 0.01510 0.01480 -0.00350 -0.00220 0.00000 O6 0.01580 0.00890 0.00860 0.00060 0.00400 0.00010 O7 0.01610 0.01020 0.00810 -0.00220 -0.00410 0.00070 O8 0.00710 0.00900 0.02060 -0.00090 0.00180 -0.00070 O9 0.01520 0.01080 0.00690 -0.00270 0.00440 -0.00160 O10 0.01690 0.00870 0.00680 -0.00310 -0.00320 0.00130 O11 0.01510 0.01720 0.01600 0.00590 -0.00280 -0.00190 O-h12 0.01380 0.01100 0.01340 -0.00490 -0.00330 0.00250 O-h13 0.00810 0.00950 0.00690 -0.00110 -0.00020 0.00140