Periclase Fiquet G, Richet P, Montagnac G Physics and Chemistry of Minerals 27 (1999) 103-111 High-temperature thermal expansion of lime, periclase, corundum and spinel Sample: Re wire, T = 2073 K _database_code_amcsd 0008356 4.324 4.324 4.324 90 90 90 Fm3m atom x y z Mg 0 0 0 O .5 .5 .5