This paper presents the results of 57Fe Mössbauer spectroscopy and X-ray diffraction
analysis of highly metamict perrierite (REE, Ca, Th) 4 (Fe2+, Mg) 2 (Ti, Fe3+) 3Si4O22 after …

The onset of thermally induced, heterogeneous structural reorganization of highly radiation-
damaged allanite-(Ce) begins at temperatures below 700 K. Three strongly disordered …

Allanite is a common accessory mineral in igneous rocks. Allanite becomes metamict over
geological time-scales as a result of the α-decay of radioactive elements in the crystal …

Allanite is one of the most common sources of rare-earth elements (REEs) and contains
significant amounts of thorium (Th) and uranium (U). The presence of radioactive Th and U …

Abstract Radiation-damaged allanite-(Ce) starts to recrystallize at an annealing temperature
below 700 K. At the same temperature Fe 2+→ Fe 3+ oxidation, as well as dehydration …

This paper presents the results of 57 Fe Mössbauer spectroscopy, SEM-EDS analysis,
gamma-ray spectrometry, and X-ray diffraction (XRD) patterns for an unknown metamict …

Minerals can become metamict over geological time periods as a result of structural damage
induced by α-decay events resulting from incorporated radiogenic elements. The structural …

Zusammenfassung Das Verhalten von kristallinen Strukturen bei andauernder
Strahlenschädigung ist von aktuellem Interesse, um die Lagerung von radioaktiven Abfällen …

Allanite is a common accessory mineral in igneous rocks that contains significant amounts of
rare‐earth elements (REEs), thorium (Th), and uranium (U). The presence of Th and U in the …

The process of establishing the valence states of iron in radioactive uranium-thorium
bearing mineral allanite is essential in evaluating the effect of radiation in its crystal …