AM_Lawsonite_20 Formula: Ca (Al1.94 Fe.06) Si2 O10 D4 Name: Lawsonite Unit cell: 5.8543 8.79679 13.1387 90.0 90.0 90.0 , V=676.63 Space group: CMCM (63)

Meyer H W , Marion S , Sondergeld P , Carpenter M A , Knight K S , Redfern S A T , Dove M T , American Mineralogist , 86 (2001) p.566-577, Displacive components of the low-temperature phase transitions in lawsonite, T = 300 K