MPG #17.1.62: \(\bar{3}\)# Related group PG : \(C_{\rm 3i}\) (\(\bar{3}\)) SG : \(C_{\rm 3i}^{1}\) (\(P\bar{3}\)) MSG (SG) : \(C_{\rm 3i}^{1}\) (\(P\bar{3}\)) Symmetry operation : PDF Wyckoff site : PDF Response tensor Q : PDF G : PDF T : PDF M : PDF