Abstract
Six schorlomite samples with TiO2 contents varying between 9.70 and 15.34 weight percent were studied by means of Mossbauer spectroscopy and chemical analysis. The measured Mossbauer spectra have complex shapes. The spectra of these samples were fitted with six doublets, which can be assigned to VIIIFe2+, VIFe2+, VIFe3+, IVFe3+ and two electron delocalizations, IVFe3+ ⇌ VIIIFe2+ and IVFe3+ ⇌ VIFe2+, respectively. The assignment of iron absorption doublets and their Mossbauer parameters are discussed in terms of the single crystal structure data of one of the samples studied in this work. Cation distributions are also given. The occupancies of cations at the tetrahedral (Z) site are Fe3+>Al3+, Ti4+, and the relative enrichments at Z site are always Fe3+>Ti4+. Most of the six samples contain Ti3+. Ti3+/ΣTi ratios range from 1.43 percent to 6.40 percent. Fe2+/ΣFe ratios vary from 8.84 percent to 11.31 percent. Four types of substitution must be considered for Ti entering the garnet structure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
