AM_Lawsonite_24 Formula: Sr Mn2 Si2 O10 H6 Name: Lawsonite Unit cell: 6.255 9.034 13.397 90.0 90.0 90.0 , V=757.03 Space group: CMCM (63)

Armbruster T , Oberhansli R , Bermanec V , European Journal of Mineralogy , 4 (1992) p.17-22, Crystal structure of SrMn2(Si2O7)(OH)2.H2O, a new mineral of the lawsonite type