The nucleus Ge has been studied in two experiments performed at the Laboratori Nazionali di Legnaro. Analysis of the measured angular distribution and polarization correlation for the 1665 keV gamma-ray emitted in fusion-evaporation reactions and previously assigned M2/E1 character suggests a mixing ratio larger than expected. This indicates that the amount of isospin impurity for the low-lying states could be much lower than the theoretical expectations.