AM_Ettringite_1
Formula: Ca3 Al S1.5 O24.5 H34
Name: Ettringite
Unit cell: 11.23 11.23 10.72 90.0 90.0 120.0 , V=1170.81
Space group: P63/MCM (193)

Moore A , Taylor H F W , Nature , 218 (1968) p.1048-1049, Crystal structure of ettringite, Locality: Scawt Hill, Northern Ireland