xxx
Array
(
    [0] => Array
        (
            [id] => 617
            [topology] => lib-3,4-P42/mmc
            [link_rcsr] => 
            [in_col] => 2
            [transitivity] => [2453]
            [space_group] => P42/mmc
            [pearson] => tP12
            [cn] => 3, 4 (1:2)
            [Year] => 2013
            [cn_sort] => 003-004-001-002-
            [topology_str] => lib-3,4-P42/mmc
            [caid] => 131
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 2.533
            [e_gap] => 
            [energy] => 0.891
            [bulk_mod] => 298.6
            [shear_mod] => 218.1
            [vicker_hard] => 26.8
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 618
            [topology] => lib-3,4-P42/mmc
            [link_rcsr] => 
            [in_col] => 2
            [transitivity] => [2453]
            [space_group] => P42/mmc
            [pearson] => tP12
            [cn] => 3, 4 (1:2)
            [Year] => 2013
            [cn_sort] => 003-004-001-002-
            [topology_str] => lib-3,4-P42/mmc
            [caid] => 131
            [nn] => 1
            [name] => 3D (6,0)-I
            [pressure] => 
            [density] => 
            [e_gap] => 0.69
            [energy] => 
            [bulk_mod] => 298.63
            [shear_mod] => 231.11
            [vicker_hard] => 81.07
            [ref_file] => /References/2013_ScientificReports_3_1331
            [publ_year] => 2013
            [ref] => 
        )

)
xxx