Potassium silver diniobophosphate(V) (0.67/0.33/1)

Ag_0.333K_0.667Nb₂O₈P

Stucky, G.D.Nicol, J.M.Liang, C.S.Harrison, W.T.A.

Zeitschrift fuer Kristallographie (149,1979-) (1994) 209, 781-788

a=8.5212Å   b=8.5212Å   c=8.5212Å

α=104.698°   β=104.698°   γ=104.698°