Having established that Ni 4 V 3 O 10 has a Néel temperature at 38 K and does not experience k = 0 ordering, it is worth further exploring its nontrivial magnetic properties. A Curie-Weiss fit to magnetometry data above 300 K, shown in Fig. , results in a Curie-Weiss parameter θ = -234 K. Combined with the information about T N from the low temperature magnetometry and neutron diffraction data, this indicates frustrated antiferromagnetic ordering with a frustration index of 6.2.