AM_Lawsonite_2 Formula: Ca Al2 Si2 O10 H4 Name: Lawsonite Unit cell: 5.853 8.766 13.1 90.0 90.0 90.0 , V=672.13 Space group: PMCN (62)

Libowitzky E , Armbruster T , American Mineralogist , 80 (1995) p.1277-1285, Low-temperature phase transitions and the role of hydrogen bonds in lawsonite, Sample: T = 155 K