Citation: Averbuch-Pouchot, M T; Durif, A (1987). Crystal data and structure of Nb2 Co (P2 O7)3 and Nb2 Mg (P2 O7)3. Zeitschrift fuer Kristallographie (149,1979-), 180, pp. 195-202.
Formula: Mg0.98 Nb2.02 O21 P6
Chemical name:Niobium magnesium diphosphate (2.02/0.98/3)