Citation: Kanishcheva, A.S.; Egorysheva, A.V.; Mikhailov, Yu.N.; Kargin, Yu.F.; Gorbunova, Yu.E.; Skorikov, V.M. (2004). Crystal structure of the metastable polymorph gamma-Na2 (B2 O3)2. Zhurnal Neorganicheskoi Khimii, 49, pp. 1006-1011.
Formula: B4 Na2 O7
Chemical name: Na2 (B4 O7)
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: B24 O40 (B3 O5)
Multiplicity: 1
Coordination sequences: