Axtell and Allende: A Mossbauer spectroscopic study

Mossbauer spectra showed the CV3 oxidized subgroup meteorites Allende and A xtell to be similar in olivine content and in a surprising lack of pronounc ed magnetic components, but different in Fe3+ phases. One atypical Allende sample showed an 8% area under the curve for magnetite, which is still less than a reported value for a CV3 reduced subgroup member. Allende's unusual Fe3+ spectral region distinguishes it from most other stony meteorites and is difficult to fit to known mineral parameters.