The investigated Ni-geikielite pigments were only partially stable in the tested low-temperature(1000–1050 ◦C) commercial ceramic glazes.This was demonstrated by slight changes in the features of absorption spectra of glazed samples with respect to pigment powders.Despite of this limited stability,glazed samples developed nice yellowish colorations (comparable to those obtained with Ni-rutile ceramic pigments)which were very similar for both preparation routes.