Sodium calcium orthovanadate,NaCa4(VO4)3

Single crystals of sodium tetra­calcium trivanadium dodeca­oxide were prepared by melting a powder sample of NaCa₄(VO₄)₃ at 1673 K, followed by slow cooling to room temperature. The compound crystallizes in the Pnma space group and is isostructural with the mineral silicocarnotite, Ca₅(PO₄)₂SiO₄. The structure is composed of isolated VO₄ tetra­hedra linked by sodium and calcium cations disordered over eight‐ and seven‐coordinated sites.