#MEAM data Aluminum, Magnesium
  # elt       lat     z       ielement     atwt
  # alpha     b0      b1      b2           b3       alat    esub    asub
  # t0        t1              t2           t3               rozero  ibar

  'Al'        'fcc'   12.     13           26.9815
  4.64        2.04    1.50    6.0          1.50     4.05    3.353   1.07
  1.0         4.00           -2.30         8.01             1.0     0

  'Mg'       'hcp'   12.      12           24.305
  5.45        2.70   0.0      0.35         3.0      3.20    1.55    1.11
  1.0         8.00            4.10         -2.0             0.6     0