Citation: Steadman, R.; Nuttall, P.M. (1963). Polymorphism in cronstedtite. Acta Crystallographica (1,1948-23,1967), 16, pp. 1-8.
Formula: Fe4 H5 O9 Si
Chemical name: Fe3 ((Fe Si) O4 (O H)5)
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Fe5 O9 Si2 (Fe5 O9 Si2)
Multiplicity: 1