Citation: Alietti, E.; Brigatti, M. F.; Capedri, S.; Poppi, L. (1994). The roedderite-chayesite series from Spanish lamproites: crystal chemical characterization. Mineralogical Magazine, 58, pp. 655-662.
Formula: Fe0.8 K0.85 Mg4.2 Na0.29 O30 Si12
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Fe10 Mg10 O60 Si24 (Fe5 Mg5 O30 Si12)
Multiplicity: 1