AM_Laumontite_15 Formula: Ca Al2 Si4 O16.5 H12 Name: Laumontite Unit cell: 14.7204 13.1084 7.408 90.0 110.512 90.0 , V=1338.83 Space group: C12/M1 (12)

Lee Y , Hriljac J A , Vogt T , Physics and Chemistry of Minerals , 31 (2004) p.421-428, Pressure-induced migration of zeolitic water in laumontite