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: IR wire, T = 1901 K _database_code_amcsd 0008345 4.319 4.319 4.319 90 90 90 Fm3m atom x y z Mg 0 0 0 O .5 .5 .5