Perovskite Knight K S The Canadian Mineralogist 47 (2009) 381-400 Parameterization of the crystal structures of centerosymmetric zone-boundary-tilted perovskites: An analysis in terms of symmetry-adapted basis-vectors of the cubic aristotype phase _database_code_amcsd 0006288 5.38095 5.43710 7.64208 90 90 90 Pbnm atom x y z Uiso Ca .0061 .5354 .25 .0101 Ti 0 0 0 .0085 O1 -.0719 -.0162 .25 .0092 O2 .2104 .2891 .0372 .0093