data_global _chemical_name_mineral 'Dickthomssenite' loop_ _publ_author_name 'Hughes J M' 'Cureton F E' 'Marty J' 'Gault R A' 'Gunter M E' 'Campana C F' 'Rakovan J F' 'Sommer A J' 'Brueseke M E' _journal_name_full 'The Canadian Mineralogist' _journal_volume 39 _journal_year 2001 _journal_page_first 1691 _journal_page_last 1700 _publ_section_title ; Dickthomssenite, Mg(V2O6).7H2O, a new mineral species from the Firefly-Pigmay mine, Utah: Descriptive mineralogy and arrangement of atoms ; _database_code_amcsd 0005758 _chemical_compound_source 'Firefly-Pigmay mine, Utah, USA' _chemical_formula_sum 'V2 Mg O13 H14' _cell_length_a 38.954 _cell_length_b 7.2010 _cell_length_c 16.3465 _cell_angle_alpha 90 _cell_angle_beta 97.602 _cell_angle_gamma 90 _cell_volume 4545.019 _exptl_crystal_density_diffrn 2.036 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-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_U_iso_or_equiv V1 0.15060 0.11630 0.21010 0.00800 V2 0.09910 0.36730 0.29120 0.00900 V3 0.15180 0.61700 0.21170 0.00900 V4 0.09870 0.86610 0.29040 0.00900 Mg1 0.12550 0.62380 0.00180 0.01900 Mg2 0.00000 0.50000 0.00000 0.02100 Mg3 0.75000 0.75000 0.50000 0.02200 O1 0.11320 0.11760 0.28330 0.02000 O2 0.13640 0.36880 0.21840 0.01900 O3 0.11570 0.61800 0.29060 0.01600 O4 0.13460 0.86630 0.21170 0.01600 O5 0.18950 0.11200 0.26050 0.02300 O6 0.15470 0.12530 0.10950 0.01800 O7 0.06070 0.37440 0.23880 0.02200 O8 0.09300 0.63500 -0.10860 0.01500 O9 0.18960 0.62490 0.26530 0.02300 O10 0.15810 0.61540 0.11190 0.01500 O11 0.06040 0.85820 0.23770 0.02400 O12 0.09370 0.87540 0.39030 0.02200 Ow13 0.14350 0.89420 -0.02060 0.02600 H13A 0.12500 0.95760 -0.02370 0.03100 H13B 0.15530 0.94120 0.02180 0.03100 Ow14 0.09000 0.74740 0.06750 0.03600 H14A 0.09640 0.73130 0.11880 0.04400 H14B 0.08470 0.85430 0.04770 0.04400 Ow15 0.10620 0.35630 0.01910 0.02500 H15A 0.11130 0.28980 -0.02050 0.02900 H15B 0.09540 0.28690 0.04920 0.02900 Ow16 0.16070 0.49480 -0.06460 0.03800 H16A 0.16210 0.55050 -0.10980 0.04500 H16B 0.18070 0.49200 -0.03670 0.04500 Ow17 -0.02640 0.50350 0.09970 0.02500 H17A -0.03320 0.61360 0.10720 0.03000 H17B -0.01310 0.46630 0.14200 0.03000 Ow18 0.04160 0.39220 0.07150 0.04000 H18A 0.03520 0.29580 0.09530 0.04800 H18B 0.05720 0.36340 0.04210 0.04800 Ow19 -0.01880 0.23060 -0.02670 0.03000 H19A -0.00560 0.16000 0.00520 0.03600 H19B -0.03320 0.15810 -0.05420 0.03600 Ow20 0.77620 0.75230 0.40150 0.02800 H20A 0.77230 0.66770 0.36520 0.03400 H20B 0.78030 0.86330 0.38780 0.03400 Ow21 0.79180 0.85660 0.57340 0.03900 H21A 0.79660 0.96560 0.55860 0.04600 H21B 0.80970 0.79110 0.56970 0.04600 Ow22 0.76800 0.48020 0.52710 0.03000 H22A 0.75610 0.40640 0.49410 0.03600 H22B 0.78290 0.41020 0.55460 0.03600 Ow23 0.75030 0.41610 0.24750 0.02400 H23A 0.76840 0.48010 0.24400 0.02900 H23B 0.74250 0.36570 0.20180 0.02900 Ow24 0.77480 0.25160 0.39740 0.03000 H24A 0.76140 0.18110 0.42040 0.03600 H24B 0.79560 0.21690 0.39650 0.03600 Ow25 0.97550 0.00190 0.60150 0.02800 H25A 0.95470 0.03930 0.60050 0.03400 H25B 0.98870 0.07260 0.57820 0.03400 Ow26 0.00000 0.33820 0.75000 0.02600 H26 0.98140 0.30700 0.76820 0.03100 Ow27 0.00000 0.83070 0.75000 0.03000 H27 0.99260 0.88330 0.70450 0.03600