Citation: Peacor, D. R. (1967). Refinement of the crystal structure of a pyroxene of formula M1M2(Si1.5Al0.5)O6. American Mineralogist, 52, pp. 31-41.
Formula: Al0.64 Ca0.98 Fe0.22 Mg0.57 Mn0.01 Na0.01 O6 Si1.5 Ti0.07
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 Ca4 Fe4 Mg4 Mn4 Na4 O24 Si8 Ti4 (Al3 Ca Fe Mg Mn Na O6 Si2 Ti)
Multiplicity: 1