Citation: Yamnova, N. A.; Egorov-Tismenko Yu K; Pushcharovskii D Yu; Malinko, S. V.; Dorokhova, G. I. (1993). Crystal structure of a new natural Na,Ca-hydroborate NaCa2[B9O14(OH)4]*2H2O. Crystallography Reports, 38, pp. 749-752.
Formula: B9 Ca2 H8 Na O20
List type: interleaving
List: 2D
Basis: (1;0;0 0;0;1)
Dimensionality: 2
Formula: B18 H8 O36 (B9 H4 O18)
Multiplicity: 1