#------------------------------------------------------------------------------ #$Date: 2011-03-27 22:24:00 +0000 $ #$Revision: 001 $ #------------------------------------------------------------------------------ # # This file is available in the Material Properties Open Database (MPOD), # http://www.materialproperties.org/ # # 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_1000131 _cod_database_code 1010541 _structure_refined 'no' _phase_name 'beryl' _phase_formula 'Be3Al2Si6O18' _chemical_formula_sum 'Be3 Al2 Si6 O18' _symmetry_point_group_name_H-M '6/m m m' _cell_length_a 9.21 _cell_length_b 9.21 _cell_length_c 9.17 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 loop_ _publ_author_name 'Voigt, W.' _publ_section_title ; Lehrburch der Kristallphysik ; _journal_name_full 'Leipzig: Teubner B.G.' _journal_volume ? _journal_issue ? _journal_page_first ? _journal_page_last ? _journal_year 1928 _prop_measurement_method '?' _prop_conditions_temperature ? _prop_elastic_compliance_sij 'sij' loop_ _prop_data_label _prop_data_tensorial_index _prop_data_value sij 11 4.42 sij 12 -1.37 sij 13 -0.86 sij 22 4.42 sij 23 -0.86 sij 33 4.70 sij 44 15.3 sij 55 15.3 sij 66 11.52