This paper reports the results of a combined methodological study performed on tetraferriphlogopite from the Araxa carbonatite. We compare Mossbauer spectroscopy and X-ray absorption near-edge spectroscopy (XANES) results to previously reported single-crystal X-ray and electron microprobe analysis data (Cruciani & Zanazzi, 1994). The combined techniques provide evidence for the presence of a remarkable amount of tetrahedrally coordinated Fe3+ in this sample, and show that high OH content in tetraferriphlogopite is compatible with the large Fe2O3/FeO ratio inferred from the chemical and spectroscopic data.

Tetrahedral ferric iron in phlogopite: Xanes and Mossbauer compared to single crystal X-ray data

CRUCIANI, Giuseppe;
1995

Abstract

This paper reports the results of a combined methodological study performed on tetraferriphlogopite from the Araxa carbonatite. We compare Mossbauer spectroscopy and X-ray absorption near-edge spectroscopy (XANES) results to previously reported single-crystal X-ray and electron microprobe analysis data (Cruciani & Zanazzi, 1994). The combined techniques provide evidence for the presence of a remarkable amount of tetrahedrally coordinated Fe3+ in this sample, and show that high OH content in tetraferriphlogopite is compatible with the large Fe2O3/FeO ratio inferred from the chemical and spectroscopic data.
1995
Cruciani, Giuseppe; Zanazzi, P. F.; Quartieri, S.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1199775
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