Mouml;ssbauer spectroscopy has been used to identify the crystallites of Fe2O3in B2O3glass. Mouml;ssbauer spectra observed are different from those observed by earlier workers in complex borate glasses. A highhyphen;spin Fe2+state is observed in B2O3glass containing 0.05 wtpercent; Fe2O3. The result in Na2Osdot;2B2O3doped with a very low concentration of Fe2O3is also different from that in B2O3doped with similar amounts of Fe2O3.
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