AM_Lawsonite_25 Formula: Ca Al2 Si2 O10 H4 Name: Lawsonite Unit cell: 5.85 8.79 13.122 90.0 90.0 90.0 , V=674.75 Space group: CMCM (63)

Kolesov B A , Lager G A , Schultz A J , European Journal of Mineralogy , 20 (2008) p.63-72, Behaviour of H2O and OH in lawsonite: a single-crystal neutron diffraction and, Raman spectroscopic investigation, Sample: T = 295 K