Katoite Lager G A, Downs R T, Origlieri M J, Garoutte R American Mineralogist 87 (2002) 642-647 High-pressure single-crystal X-ray diffraction study of katoite hydrogarnet: Evidence for a phase transition from Ia-3d - I-43d symmetry at 5 GPa Sample: P = 2.15 GPa _database_code_amcsd 0002792 12.4286 12.4286 12.4286 90 90 90 Ia-3d atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ca .125 0 .25 .0021 .00125 .00125 0 0 .0001 Al 0 0 0 .00133 .00133 .00133 .0001 .0001 .0001 SiT .375 0 .25 0 OH .0289 .0530 .6410 .0023 .0022 .0013 -.0004 -.0001 -.0002