Beryllium Yang Y W, Coppens P Acta Crystallographica A34 (1978) 61-65 The electron density and bonding in beryllium metal as studied by Fourier methods Locality: synthetic _database_code_amcsd 0009324 2.2858 2.2858 3.5843 90 90 120 P6_3/mmc atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Be 1/3 2/3 .75 .0072 .0072 .0066 .0036 0 0