Citation: Rule, A.C.; Bailey, S.W. (1987). Refinement of the crystal structure of a monoclinic ferroan clinochlore. Clays and Clay Minerals (29,1981-), 35, pp. 129-138.
Formula: Al2.651 Fe1.686 H8 Mg2.96 O18 Si2.622
Chemical name:(Mg2.96 Fe1.55 Fe.136 Al1.275) (Si2.622 Al1.376 O10) (O H)8