Citation: Libowitzky, E.; Armbruster, T. (1996). Lawsonite-type phase transitions in hennomartinite, SrMn2[Si2O7](OH)2.H2O T = 22 C. American Mineralogist, 81, pp. 9-18.
Formula: H8 Mn2 O10 Si2 Sr
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: H16 Mn8 O36 Si8 (H4 Mn2 O9 Si2)
Multiplicity: 1