Na0.5 Pb2 (B5 O9) Cl (O H)0.5

B₅ClH_0.5Na_0.5O_9.5Pb₂

Belokoneva, E.L.Stefanovich, S.Yu.Dimitrova, O.V.Korchemkina, T.A.

Kristallografiya (2000) 45, 814-823

a=11.51Å   b=11.45Å   c=6.563Å

α=90°   β=90°   γ=90°