Goethite Nagai T, Kagi H, Yamanaka T American Mineralogist 88 (2003) 1423-1427 Variation of hydrogen bonded O...O distances in goethite at high pressure Sample at P = 9.0 GPa _database_code_amcsd 0003169 4.4683 9.8334 2.9739 90 90 90 Pbnm atom x y z Fe -.0457 .1444 .25 O1 .306 -.1961 .25 O2 -.207 -.0520 .25