Citation: Moore, P. B.; Shen, J.; Araki, T. (1985). Crystal chemistry of the (M2)3+ phi2 sheet: Structural principles and crystal structures of ruizite, macfallite and orientite. American Mineralogist, 70, pp. 171-181.
Formula: Ca2 H6 Mn2 O17 Si4
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Mn4 O38 Si8 (Mn2 O19 Si4)
Multiplicity: 1