#------------------------------------------------------------------------------ #$Date: 2012-02-28 17:44:07 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35913 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/01/36/9013619.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided the American Mineralogist Crystal Structure Database, # http://rruff.geo.arizona.edu/AMS/amcsd.php # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_9013619 loop_ _publ_author_name 'Yang, H.' 'Konzett, J.' 'Downs, R. T.' 'Frost, D. J.' _publ_section_title ; Crystal structure and Raman spectrum of a high-pressure Li-rich majoritic garnet, (Li2Mg)Si2(SiO4)3 Locality: synthetic, synthesized at P = 15 GPa, T = 1500 C ; _journal_name_full 'American Mineralogist' _journal_page_first 630 _journal_page_last 633 _journal_volume 94 _journal_year 2009 _chemical_formula_sum 'Li1.95 Mg1.05 O12 Si5' _chemical_name_mineral (Li2Mg)Si2(SiO4)3 _space_group_IT_number 230 _symmetry_space_group_name_Hall '-I 4bd 2c 3' _symmetry_space_group_name_H-M 'I a -3 d' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 11.2660 _cell_length_b 11.2660 _cell_length_c 11.2660 _cell_volume 1429.912 _diffrn_ambient_pressure 1.5e+07 _diffrn_ambient_temperature 1773.15 _exptl_crystal_density_diffrn 3.451 _exptl_crystal_pressure_history 'synthesized at P = 15 GPa' _exptl_crystal_thermal_history 'synthesized at P = 15 GPa, T = 1500 C' _[local]_cod_cif_authors_sg_H-M 'I a 3 d' _[local]_cod_chemical_formula_sum_orig '(Li1.95 Mg1.05) Si5 O12' _cod_database_code 9013619 _amcsd_database_code AMCSD#0004915 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2+y,1/2+z z,1/2-x,1/2+y 1/2+z,-x,+y -y,1/2+z,1/2-x 1/2-y,+z,-x x,1/2-y,1/2+z 1/2+x,-y,+z -z,1/2+x,1/2-y 1/2-z,+x,-y y,1/2-z,1/2+x 1/2+y,-z,+x -x,1/2+y,1/2-z 1/2-x,+y,-z 3/4+x,1/4-z,3/4-y 1/4+x,3/4-z,1/4-y 3/4-z,1/4+y,3/4+x 1/4-z,3/4+y,1/4+x 3/4+y,1/4-x,3/4-z 1/4+y,3/4-x,1/4-z 3/4-x,1/4+z,3/4+y 1/4-x,3/4+z,1/4+y 3/4+z,1/4-y,3/4-x 1/4+z,3/4-y,1/4-x 3/4-y,1/4+x,3/4+z 1/4-y,3/4+x,1/4+z 1/4+x,1/4+z,1/4+y 3/4+x,3/4+z,3/4+y 1/4-z,1/4-y,1/4-x 3/4-z,3/4-y,3/4-x 1/4+y,1/4+x,1/4+z 3/4+y,3/4+x,3/4+z 1/4-x,1/4-z,1/4-y 3/4-x,3/4-z,3/4-y 1/4+z,1/4+y,1/4+x 3/4+z,3/4+y,3/4+x 1/4-y,1/4-x,1/4-z 3/4-y,3/4-x,3/4-z 1/2+z,x,1/2-y +z,1/2+x,-y 1/2-y,-z,1/2+x -y,1/2-z,+x 1/2+x,y,1/2-z +x,1/2+y,-z 1/2-z,-x,1/2+y -z,1/2-x,+y 1/2+y,z,1/2-x +y,1/2+z,-x 1/2-x,-y,1/2+z -x,1/2-y,+z 1/2-z,1/2+x,y -z,+x,1/2+y 1/2+y,1/2-z,-x +y,-z,1/2-x 1/2-x,1/2+y,z -x,+y,1/2+z 1/2+z,1/2-x,-y +z,-x,1/2-y 1/2-y,1/2+z,x -y,+z,1/2+x 1/2+x,1/2-y,-z +x,-y,1/2-z 3/4-x,3/4+z,1/4-y 1/4-x,1/4+z,3/4-y 3/4+z,3/4-y,1/4+x 1/4+z,1/4-y,3/4+x 3/4-y,3/4+x,1/4-z 1/4-y,1/4+x,3/4-z 3/4+x,3/4-z,1/4+y 1/4+x,1/4-z,3/4+y 3/4-z,3/4+y,1/4-x 1/4-z,1/4+y,3/4-x 3/4+y,3/4-x,1/4+z 1/4+y,1/4-x,3/4+z 1/4-x,3/4-z,3/4+y 3/4-x,1/4-z,1/4+y 1/4+z,3/4+y,3/4-x 3/4+z,1/4+y,1/4-x 1/4-y,3/4-x,3/4+z 3/4-y,1/4-x,1/4+z 1/4+x,3/4+z,3/4-y 3/4+x,1/4+z,1/4-y 1/4-z,3/4-y,3/4+x 3/4-z,1/4-y,1/4+x 1/4+y,3/4+x,3/4-z 3/4+y,1/4+x,1/4-z -z,-x,-y 1/2-z,1/2-x,1/2-y y,z,x 1/2+y,1/2+z,1/2+x -x,-y,-z 1/2-x,1/2-y,1/2-z z,x,y 1/2+z,1/2+x,1/2+y -y,-z,-x 1/2-y,1/2-z,1/2-x 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 LiX 0.00700 0.01650 0.01650 0.00000 0.00000 0.00180 MgX 0.00700 0.01650 0.01650 0.00000 0.00000 0.00180 SiY 0.00520 0.00520 0.00520 0.00020 0.00020 0.00020 Si 0.00560 0.00500 0.00500 0.00000 0.00000 0.00000 O 0.00750 0.00950 0.00610 0.00100 -0.00140 -0.00020 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 LiX 0.12500 0.00000 0.25000 0.65000 0.01330 MgX 0.12500 0.00000 0.25000 0.35000 0.01330 SiY 0.00000 0.00000 0.00000 1.00000 0.00520 Si 0.37500 0.00000 0.25000 1.00000 0.00520 O 0.03231 0.04389 0.64800 1.00000 0.00770