The effect of thermal treatment on the 57Fe Mössbauer spectrum of beryl

• Published in: Physics and chemistry of minerals Vol. 33; no. 3; pp. 161 - 166
• Main Authors: da Costa, Geraldo Magela, de Oliveira Polli, Gabriel, Kahwage, Márcio A., de Grave, Eddy, Sabioni, Antônio Claret Soares, Mendes, Júlio Cesar
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer Nature B.V 01.05.2006
• Subjects: Beryllium aluminum silicates; Crystallography; Heat treatment; High temperature; Iron; Iron 57

Mössbauer spectra (MS) of blue, green and yellow beryl (ideally Be3Al2Si6O18) containing approximately 1% of iron were obtained at 295 and 500 K. Room temperature (RT) spectra of both blue and green samples showed the presence of an asymmetric Fe2+ doublet (ΔEQ~2.7 mm/s, δ~1.1 mm/s), with a very bro...