data_global _chemical_name_mineral 'Rhonite' loop_ _publ_author_name 'Bonaccorsi E' 'Merlino S' 'Pasero M' _journal_name_full 'European Journal of Mineralogy' _journal_volume 2 _journal_year 1990 _journal_page_first 203 _journal_page_last 218 _publ_section_title ; Rhonite: structural and microstructural features, crystal chemistry and polysomatic relationships ; _database_code_amcsd 0006382 _chemical_compound_source 'volcanic breccias of Scharnhausen' _chemical_formula_sum '(Mg3.295 Fe1.705) Ti (Ca1.93 Na.07) (Si3 Al3) O20' _cell_length_a 10.428 _cell_length_b 10.807 _cell_length_c 8.925 _cell_angle_alpha 105.91 _cell_angle_beta 96.13 _cell_angle_gamma 124.80 _cell_volume 748.853 _exptl_crystal_density_diffrn 3.492 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,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 MgM1 0.00000 0.00000 0.50000 0.70000 0.00470 FeM1 0.00000 0.00000 0.50000 0.30000 0.00470 MgM2 0.00000 0.50000 0.00000 0.65000 0.00380 FeM2 0.00000 0.50000 0.00000 0.35000 0.00380 MgM3 0.31360 0.85310 0.16920 0.59000 0.00830 FeM3 0.31360 0.85310 0.16920 0.41000 0.00830 MgM4 0.77840 0.83020 0.14860 0.63000 0.00890 FeM4 0.77840 0.83020 0.14860 0.37000 0.00890 MgM5 0.09580 0.94110 0.05430 0.74000 0.00920 FeM5 0.09580 0.94110 0.05430 0.26000 0.00920 MgM6 0.59710 0.94530 0.05970 0.66000 0.00720 FeM6 0.59710 0.94530 0.05970 0.34000 0.00720 TiM7 0.99730 0.74360 0.25540 1.00000 0.01220 CaM8 0.20600 0.62790 0.39270 0.97000 0.01040 NaM8 0.20600 0.62790 0.39270 0.03000 0.01040 CaM9 0.66140 0.60820 0.37420 0.96000 0.01270 NaM9 0.66140 0.60820 0.37420 0.04000 0.01270 SiT1 0.47070 0.23250 0.33480 0.50000 0.00730 AlT1 0.47070 0.23250 0.33480 0.50000 0.00730 SiT2 0.97440 0.23210 0.34540 0.50000 0.00540 AlT2 0.97440 0.23210 0.34540 0.50000 0.00540 SiT3 0.78330 0.34310 0.23580 0.50000 0.00520 AlT3 0.78330 0.34310 0.23580 0.50000 0.00520 SiT4 0.27020 0.33830 0.22580 0.50000 0.00730 AlT4 0.27020 0.33830 0.22580 0.50000 0.00730 SiT5 0.64460 0.94690 0.43520 0.50000 0.00080 AlT5 0.64460 0.94690 0.43520 0.50000 0.00080 SiT6 0.36190 0.56620 0.05030 0.50000 0.00250 AlT6 0.36190 0.56620 0.05030 0.50000 0.00250 O1 0.34590 0.05730 0.16060 1.00000 0.00950 O2 0.84650 0.05900 0.16830 1.00000 0.01060 O3 0.54920 0.96020 0.28320 1.00000 0.01380 O4 0.01970 0.93330 0.26900 1.00000 0.01550 O5 0.23720 0.86810 0.38820 1.00000 0.01070 O6 0.75220 0.87590 0.38010 1.00000 0.01580 O7 0.50300 0.20060 0.50550 1.00000 0.01340 O8 0.95940 0.78690 0.48520 1.00000 0.01090 O9 0.88780 0.32440 0.38120 1.00000 0.00920 O10 0.39000 0.33470 0.36520 1.00000 0.01220 O11 0.65040 0.16630 0.05800 1.00000 0.00930 O12 0.14820 0.16390 0.05590 1.00000 0.00930 O13 0.53990 0.71990 0.03560 1.00000 0.01780 O14 0.06270 0.73060 0.06420 1.00000 0.00880 O15 0.24440 0.61880 0.12040 1.00000 0.01150 O16 0.75050 0.61030 0.13430 1.00000 0.01040 O17 0.40780 0.50620 0.19450 1.00000 0.01230 O18 0.94240 0.51680 0.21740 1.00000 0.01360 O19 0.15430 0.37190 0.31850 1.00000 0.01120 O20 0.66590 0.37920 0.33610 1.00000 0.01270