Since the 1960s, the high nickel content in the blade has been accepted as indicative of meteoric origin.[1] A more recent study published in June 2016 derived from x-ray fluorescence spectrometer analysis show that the blade's composition is mostly iron (Fe) and 11% nickel (Ni) and 0.6% cobalt (Co). This means its composition is placed within the median of a group of 76 previously discovered iron meteorites.