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 = 2473 K _database_code_amcsd 0008359 4.358 4.358 4.358 90 90 90 Fm3m atom x y z Mg 0 0 0 O .5 .5 .5