Citation: Catti, M.; Ferraris, G.; Ivaldi, G. (1988). Thermal behavior of the crystal structure of strontian piemontite Sample: T = 25 C. American Mineralogist, 73, pp. 1370-1376.
Formula: Al1.869 Ca1.799 Fe0.323 H Mn0.808 O13 Si3 Sr0.201
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al6 Fe4 H2 Mn4 O26 Si6 (Al3 Fe2 H Mn2 O13 Si3)
Multiplicity: 1