Citation: Okui, M.; Sawada, H.; Marumo, F. (1998). Structure refinement of a nonstoichiometric pyroxene synthesized under ambient pressure. Physics and Chemistry of Minerals, 25, pp. 318-322.
Formula: Al1.388 Ca0.742 Fe0.162 Mg0.016 O6 Si1.5
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 Fe4 Mg4 O24 Si8 (Al3 Fe Mg O6 Si2)
Multiplicity: 1