Mössbauer spectroscopy of NWA 6286 and NWA 7857 ordinary chondrites
Abstract
The first study of two LL6 ordinary chondrites NWA 6286 and NWA 7857 using Mössbauer spectroscopy, X-ray diffraction, scanning electron microscopy with energy dispersive spectroscopy and magnetization measurements, revealed the main and minor iron-bearing minerals including olivine, orthopyroxene, clinopyroxene, stoichiometric and non-stoichiometric troilite, chromite and hercynite as well as α-Fe(Ni, Co), α2-Fe(Ni, Co) and γ-Fe(Ni, Co) phases. Some observed differences between two ordinary chondrites were related to different content of metallic phases and non-stoichiometric troilite.
- Publication:
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Journal of Molecular Structure
- Pub Date:
- July 2017
- DOI:
- 10.1016/j.molstruc.2016.11.042
- Bibcode:
- 2017JMoSt1140..122M
- Keywords:
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- Ordinary chondrites NWA 6286 and NWA 7857;
- Mössbauer spectroscopy;
- X-ray diffraction;
- Magnetization measurements