Magnesite Ross N L American Mineralogist 82 (1997) 682-688 The equation of state and high-pressure behaviour of magnesite Sample: at P = 6.05 GPa _database_code_amcsd 0001910 4.5812 4.5812 14.6302 90 90 120 R-3c atom x y z Biso Mg 0 0 0 .27 C 0 0 .25 .16 O .2800 0 .25 .35