Concerning Mossbauer spectroscopy: large QS for Fe3+ in Fe-silicates ? It is possible in minerals?
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I know this work and most of works related to Mossbauer of minnesotaite (there are only few) and also heated minnesotaite (Eg. Mackenzie et al 1986), but my question is not about Fe2+ in natural minnesotaite (that Coey et al described), but about Fe3+ with high QS in heated minnesotaite that transformed to oxidized ferric form. I measured Moss spectra at 300 and 80K, still there are two fraction of Fe3+ with IS=0.5 and QS=2.16 and second with smaller QS. I also performed XRD for heated sample - there is only ferric minnesotaite with slightly changed cell parameters. It is very interesting and intriguing.
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pls give I need support..
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