Citation: Kingma, K. J.; Downs, J. W. (1989). Crystal-structure analysis of a birefringent andradite. American Mineralogist, 74, pp. 1307-1316.
Formula: Ca3 Fe1.885 O12 Si3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Fe16 O96 Si24 (Fe2 O12 Si3)
Multiplicity: 1
Coordination sequences: