Citation: Okamura, F. P.; Ghose, S.; Ohashi, H. (1974). Structure and crystal chemistry of calcium Tschermak's pyroxene, CaAlAlSiO6. American Mineralogist, 59, pp. 549-557.
Formula: Al2 Ca O6 Si
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 O24 Si8 (Al3 O6 Si2)
Multiplicity: 1