AM_Periclase_8 Formula: Mg O Name: Periclase Unit cell: 4.264 4.264 4.264 90.0 90.0 90.0 , V=77.53 Space group: FM3M (225)

Hazen R M , American Mineralogist , 61 (1976) p.266-271, Effects of temperature and pressure on the cell dimension and X-ray temperature, factors of periclase, T = 1042 C, P = 1 atm