AM_Lawsonite_7 Formula: Ca Al2 Si2 O10 H4 Name: Lawsonite Unit cell: 8.797 5.852 13.126 90.0 90.0 90.0 , V=675.73 Space group: CCMM (63)

Comodi P , Zanazzi P F , American Mineralogist , 81 (1996) p.833-841, Effects of temperature and pressure on the structure of lawsonite, P = 0.001 kbar, T = 23 C