AM_Makatite Formula: Na Si2 O7 H5 Name: Makatite Unit cell: 7.3881 18.094 9.5234 90.0 90.64 90.0 , V=1273.01 Space group: P121/C1 (14)

Annehed H , Faelth L , Lincoln F J , Zeitschrift fur Kristallographie , 159 (1982) p.203-210, Crystal structure of synthetic makatite Na2Si4O8(OH)2(H2O)4