Citation: Kahlenberg, V.; Shaw, C. S. J.; Parise, J. B. (2001). Crystal structure analysis of synthetic Ca4Fe1.5Al17.67O32: A high pressure, spinel-related phase. American Mineralogist, 86, pp. 1477-1482.
Formula: Al17.499 Ca4 Fe1.501 O32
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al76 Fe36 O128 (Al19 Fe9 O32)
Multiplicity: 1