Array
(
    [0] => Array
        (
            [id] => 1207
            [topology] => 3<sup>7</sup>,4<sup>2</sup>T3
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => [9(15)(10)4]
            [space_group] => P63/mmc
            [pearson] => hP160
            [cn] => 3, 4 (9:1)
            [Year] => 2008
            [cn_sort] => 003-004-009-001-
            [topology_str] => 3<sup>7</sup>,4<sup>2</sup>T3
            [sp_atoms] => 
            [caid] => 303
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => .960
            [e_gap] => 
            [energy] => 1.110
            [bulk_mod] => 26.3
            [shear_mod] => 19.0
            [vicker_hard] => 2.3
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 1208
            [topology] => 3<sup>7</sup>,4<sup>2</sup>T3
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => [9(15)(10)4]
            [space_group] => P63/mmc
            [pearson] => hP160
            [cn] => 3, 4 (9:1)
            [Year] => 2008
            [cn_sort] => 003-004-009-001-
            [topology_str] => 3<sup>7</sup>,4<sup>2</sup>T3
            [sp_atoms] => 
            [caid] => 303
            [nn] => 1
            [name] => HL C40
            [pressure] => 
            [density] => 0.78
            [e_gap] => 1.01
            [energy] => 
            [bulk_mod] => 30.25
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2008_PhysRevB_77_113402
            [publ_year] => 2008
            [ref] => 
        )

    [2] => Array
        (
            [id] => 1209
            [topology] => 3<sup>7</sup>,4<sup>2</sup>T3
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => [9(15)(10)4]
            [space_group] => P63/mmc
            [pearson] => hP160
            [cn] => 3, 4 (9:1)
            [Year] => 2008
            [cn_sort] => 003-004-009-001-
            [topology_str] => 3<sup>7</sup>,4<sup>2</sup>T3
            [sp_atoms] => 
            [caid] => 303
            [nn] => 2
            [name] => HL C40
            [pressure] => 
            [density] => 0.78
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 30.25
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2010_JSuperhardMat_32_67
            [publ_year] => 2010
            [ref] => 
        )

)