Cristobalite high Wyckoff R American Journal of Science 9 (1925) 448-459 The crystal structure of the high temperature form of Cristobalite (SiO2) _cod_database_code 1010954 _database_code_amcsd 0017674 7.12 7.12 7.12 90 90 90 F4_132 atom x y z Si1 0 0 0 O1 .125 .125 .125