A ferro-axinite from metabasalts from the Trondheim region (Norway) has been studied by Mössbauer spectroscopy. Two well defined doublets attributed respectively to divalent and trivalent iron were found. On the basis of the values of the quadrupole splitting, the first doublet is attributed to the octahedral site of the axinite. The FTIR spectrum in the 1200-700 cm-1 region is in agreement with the existence of the ν1 symmetric stretch of the Fe-O[4] bond. On this basis the second doublet MS can be attributed to Fe3+ in the tetrahedral site.