Citation: Armbruster, T.; Bermanec, V.; Wenger, M.; Oberhansli, R. (1989). Crystal chemistry of double-ring silicates: Structure of natural and dehydrated milarite at 100 K Note: natural sample. European Journal of Mineralogy, 1, pp. 353-362.
Formula: Al0.69 Be2.31 Ca2 K1.153 O30.588 Si12
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al6 Be6 O60 Si24 (Al Be O10 Si4)
Multiplicity: 1
Coordination sequences: