The second harmonic of a 1.064‐&mgr; Nd3+YAG laser has been observed in paratellurite This effect is forbidden by Kleinman's relations. The only nonvanishing nonlinear coefficientd14has been measured relative to quartz by the Maker‐fringe technique and to KDP under phase‐matching conditions. It has been inferred thatd14=1.4×10−9esu and &dgr;14=3.8×10−8esu. The latter value is 40 times lower than the average over all the known materials.