H3 P W12 O40 (H2 O)6

H₁₅O₄₆PW₁₂

Kremenovic, A.Bouree, F.Spasojevic-de Bire, A.Colomban, P.Mioc, U.B.Davidovic, M.Dimitrijevic, R.

Solid State Ionics (2002) 150, 431-442

a=12.0772Å   b=12.0772Å   c=12.0772Å

α=90°   β=90°   γ=90°