Citation: Mazza, D.; Busca, G.; Vallino, M. (1992). Mullite-type structures in the system Al2O3-Me2O (Me= Na, K) and Al2O3-B2O3. Journal of the American Ceramic Society, 75, pp. 1929-1934.
Formula: Al6 K O9.5
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al10 K4 O10 (Al5 K2 O5)
Multiplicity: 1
Coordination sequences: