Citation: Gasparik, T.; Tripathi, A.; Parise, J. B. (2000). Structure of a new Al-rich phase, [K,Na].9[Mg,Fe]2[Mg,Fe,Al,Si]6O12, synthesized at 24 GPa. American Mineralogist, 85, pp. 613-618.
Formula: Al1.305 Ca0.02 Fe0.3 K0.28 Mg1.295 Na0.16 O6 Si1.05
List type: interleaving
List: 1-3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al6 Ca2 Fe8 Mg8 O12 Si6 (Al3 Ca Fe4 Mg4 O6 Si3)
Multiplicity: 1
Basis: (0;0;1)
Dimensionality: 1
Formula: K4 Na4 (K Na)